For our FC members which have decided to pick up crafting recently. I have been power levelling them. They give me the mats, and I churn out HQ Leve turn ins. Since I am 2* capable, the effort on my part is very, very simple. Find a similarly generous experienced crafter in your FC.

Levelling advice, from 1-20 just concentrate on your crafting log, the first completion bonuses are good enough to get you there with minimal use of Leves.
Always attempt to HQ, a normal Quick Sync of a mat will give say 100 xp, while 100% HQ will give your 350 xp for the same craft. Average good XP gain will be achieved on anything where you reach beyond the 50% HQ bar fill or 15% HQ rate.

After level 20, you will need to use Leves. For optimal use of Leve per time investment you have two options every 5 levels.
Option 1: Single item turn-ins
There will always be two leves which require just 1 item:
One is given by the Levemate in the crafter home town and turned in to a person a short run away.
The other is given by a regional Levemate, and those are turned in to a person practically standing next the Levemate.

Options 2: Triple turn-ins
There will always be one leve given my the Levemate in the crafter home town which required 3 items and this turn-in can be repeated 3 times per Leve.
Thus, you will need to make 9 items to get the full value but it will save you on Leve usage.

Option 1 is far more economical, fewer mats, less time crafting, higher XP per turn-in. Its downside is the increase Leve usage, which will force you to take longer, real world time to level up.
Option 2 is far better for levelling speed in terms of real world time to max out but far more expensive in terms of mats / gil.


Crafting is so interconnected, you should level all crafters at the same time.