Skill Speed on DRK over other stats?

[Nedkel]

Well i cant see anywhere people discussing this topic, so i should start.

Not just long time ago i was certain this stat is useless, until i realized how big impact on dps does 1-2-3 combo on DRK has, i realized that in other thread when arguing about bloodspiler and tbn, and understand its neither a dps loss or a gain.

And here whenever i think longer and longer about that, if GCD does so big impact on our ability to sustain MP and do dps, wouldnt it be the thing to just entirely focus on skill speed with direct hit as a addition to it?
So i did some research with 2 tools i found on the internet and according to them:
These what i compared:
1. DH - Det - crit build
http://ffxiv.ariyala.com/15OCV
2. Skill speed - DH build
http://ffxiv.ariyala.com/15OII

And here is the comparison on google spreadsheet (not mine, someone created it):
https://docs.google.com/spreadsheets...it?usp=sharing

According to that, with the #1 i have about 10.4% more dmg from 1 hit, and the #2has 2.511% stronger AA, 2.5% stronger dot damage and 0.29 sec faster GCD.
If understand it right, every 7 GCD i have 1 extra, resulting in (for soule eater comboi took the entire combo value and divided it by 3 for the sake of calculations) on average in 2240 potency within 17 seconds, while the first build will do 1960 x 1.10 = 2156 potency in 17 seconds.
Including AA into it, there is 98 potency advantage of the SS build over the "regular one", and not only this buy also additional MP coming from the extra Siphon strike and more frequent skill usage overall with bloodweapon as well, and the salted earth dot damage boost on top of that.

Plunge and carve spit may bias the result towards the #1 build, so they may be equal.

The SS option seems attractive since its cheaper to get, way cheaper, and using SS more often looks more fun. :P
How do you guys think?