Desynthesis Endgame Guide

[Nyalia]

I just Desynthed 200 Aged Robe's and didn't receive a single FC2. Has it recently been confirmed they can still drop them?

My apologies - I removed "FC2" from the drop list in most places but missed that one. People earlier in this thread reported getting FC2s from them, but then people later in the thread (like you) have reported that to have been incorrect.

I don't personally desynth these items, so I rely on what others tell me.

[Donoho]

LTW: Glade Counter is decent source of FD I with 95+ success rate (not FD I drop) at lv 59.

[g1real]

Got once 1 and once 2 FC3's from Spring Dress Shoes in 16 desynths.

[Nyalia]

LTW: Glade Counter is decent source of FD I with 95+ success rate (not FD I drop) at lv 59.

Those seem pretty expensive sources of FC1s. That's what, 3,200 gil per attempt (assuming peiste leather is free and shards are 100 each)? I suspect the yield is only 16%, but even with a decent yield of, say, 33%, that's 10k per FC1 (20k if the yield is 16% like I actually expect). That's more than they cost on the MB on my server (10k last I checked). Brass Rings of Crafting, on the other hand, are 275 gil per attempt, with a yield of 10%, costing 2,750 gil per FC1.

Why not try Goatskin Chokers? They will have a relatively low yield (10-16%), but so should the glade counters, and the chokers only take an Aldgoat Leather, Diremite Sinew, and 4x Shards. That should cost you 1,000 or so, based on the price of Aldgoat Leather. That's a third the price of Glade Counters.

While we're on the topic of super cheap stuff, what about Hard Leather Chokers? I don't actually know the minimum rlvl that can yield FC1s (it's at most 20), but Hard Leather Chokers are an rlvl 15 item that costs 294 gil to buy from vendors. Making it is even cheaper - it takes 2x Shards, 1x Hard Leather, and 1x Beast Sinew. If rlvl 15 is too low, there are rlvl 21 Padded Leather Duckbills of Gathering that you can try. Leather Duckbills can be bought from a vendor in the North Shroud for 48 gil, and the leather and cotton are super cheap from city vendors. The only real expense for the r21 Padded Leather Duckbills of Gathering are the 3x Shards. They should cost you about 408 to craft (assuming 100 gil shards), and should have a 10% FC1 yield, costing you about 4k per FC1 (less than half the price of what you've been using). If you're lazy, you can just buy the shoes for 532 gil each at nine different vendors (three per region).

[Ondori]

Ive done some testing on this. I desynth like a mad man pretty much every day. I have noticed with the early level stuff from 19-35 that you get a significant lower yield of FC1's. lets say your a GSM and you want FC1's. imo, you would do Electrum needles (Which is lvl49?). ppl have said mythril rings etc but after doing about 5000 desynths of both electrum needles were by far the best. I am lth, wvr and gsm desynth. When I am doing rotations for FC1's I use gsm and go that route because all my items are free (miner). I don't like lth when doing it cause I would have to farm hippo for an hour (no thanks) and wvr cause of threads etc. I guess it would be the same if you were to farm hippo/mine electrum but hippo is RNG vs mining. Both are mind numbing tbh. It basically comes down to what you can afford and how much time investment you want to throw in.

[Aeyis]

Keep in mind that even if you farm the base materials yourself, you would still have to ''pay'' the shard cost. For electrum needles thats can be up to 11 shards per craft.
Because of shard costs crafted items can easily become a more expensive source for demimaterias.

[Mature]

Quick question, I'm at 74.6 dlvl on gsm what other items besides dl from bray hm could I use instead to push to 80?

[Aeyis]

Aetheryte rings should still be the best option for you, assuming you farm your own clusters.

[Alx789]

Some results
Deus ex Verbus *20. Gathering time 4 eorzea days (darrksteel, gold sand, crawler cocoons, clusters). Gil price (minium, spken blood, crystals; clusters can be gathered) - 15000. Desynth - 5 bc3 drops.
Saurian items
Belt of healing *20. Gathering time - 3 eorzea days (clusters, Shroud tea leaves) including Raptor Sinew. Gil price 35000. Desynth - 1 bc3 drop, 1 item.
Belt of aiming *20. Gathering time and gil price the same as for belt of healing. Desynth - 1 bc3 drop, 2 items.
Gloves of casting *20. Gathering time - 3 eorzea days. Gil price 60000 (more Tawny Latex needed). Desynth - 2 bc3 drops, 3 items (1+2).

[Nyalia]

Ive done some testing on this. I desynth like a mad man pretty much every day. I have noticed with the early level stuff from 19-35 that you get a significant lower yield of FC1's. lets say your a GSM and you want FC1's. imo, you would do Electrum needles (Which is lvl49?). ppl have said mythril rings etc but after doing about 5000 desynths of both electrum needles were by far the best. I am lth, wvr and gsm desynth. When I am doing rotations for FC1's I use gsm and go that route because all my items are free (miner). I don't like lth when doing it cause I would have to farm hippo for an hour (no thanks) and wvr cause of threads etc. I guess it would be the same if you were to farm hippo/mine electrum but hippo is RNG vs mining. Both are mind numbing tbh. It basically comes down to what you can afford and how much time investment you want to throw in.

While i47 items appear to have an FC1 yield of ~3-4x that of i20 items, i49 items cost about 6x as much, and that's just the shard cost. Factoring in the rest of the mats, it's more like 16x. I just started farming some FC1s for a friend's crafter accessories, and I started with 149 ragstone whetstones/brass ingots. By the time I ran out, I had 22 FC1s. 149+149*0.45+67*0.45+30*0.45+13.5*0.45+6*0.45=268 desynths for 22 FC1s. That cost me 268 fire shards, 268 wind shards, 149 bronze ingots, 149 ragstone whetstones. The shards were 68 gil each. So, I spent 536*68+149*68+149*7=47,623 gil for 22 FC1s, which puts them at 2,164 gil each.

If I had been working with i49 items which take 11 shards, electrum ingots (about 2k on my server?) and Basilisk Whetstones (let's say those are 1k, I forget), let's see how high the yield would have to be to break even with the Brass Rings of Crafting: Let Y be the Expected Yield of FC1s, S the shard cost to make one attempt, M the material cost for one attempt, F the final material cost after factoring in materials yielded, D be the initial number of desynths and T the total number after factoring in extra materials. For every synth, you get the non-shard materials to make (1-Y)/2 more desynths, giving you a geometric series for the total number of desynths: T=lim(n=0->inf) SUM(D*((1-Y)/2)^n). Since the geometric ratio is less than 1, that series converges into T=D*2/(1+Y). So, the relationship between F and M is F=M/(2/(1+Y)). D initial desynths yield T*Y demis (assuming you can't get more than 1 demi from each) and cost T*(S+F) gil. Or, you can see it as T*S+D*M (that's probably simpler). That gives you a price-per-materia of [D*(2/(1+Y))*S+D*M]/[D*(2/(1+Y))*Y]. The D's cancel giving: [(S*2/(1+Y)+M]/[Y*(2/(1+Y))] which is the same as [S+(M*(1+Y)/2)]/Y. So, plugging the numbers from before into that, M=75, S=136, Y=0.1, you get (136+75*1.1/2)*10 = 1,772, which is what the cost would have been if I obtained the average of 27 instead of 22. So, for the i47 stuff, assuming they yield only a single FC1 every time they yield FC1s, Y=0.33, S=748, M=3000, the price-per-demimateria would be (748+3000*1.33/2)/0.33 = 8312 gil.

But, that doesn't take into account the fact that you're not really getting 1 demi per 3 desynths, you're getting 1-2 demis every 0.22 desynths. So, the formula should really be: price-per-demimateria = [S+(M*(1+Y')/2)]/Y where Y' = Y*N/(N*(N+1)/2) and N=the maximum number of demis obtainable from a desynth. So, if N=2 and Y=0.33, Y'=0.22. So, a better answer would be (748+3000*1.22/2)/0.33 =7812 gil.

In conclusion, using the i47 Electrum Needle will cost 4.4 times as much per FC1 as using Brass Rings of Crafting. Of course, this is ignoring the increased time cost. But, given that FC1s sell on my server for 8k each last time I checked, you're only saving 188 gil by making them yourself via the needles. Using Brass Rings, you save 6,228 on average. Sure, using Brass Rings takes 3.3 times as long, but you save 33 times as much money. The Brass Rings of Crafting are literally ten times more cost efficient than the Electrum Needles if you take time into account.

Also, saying that something is cheaper if you gather the materials yourself is incorrect if you don't take into account how much gil you could have made selling (even shortselling) the materials instead of using them.