Having read 40 something pages of this thread I've decided to go 3 stats on my Omnilex. Since it seems that you're required to move to higher grade materia after putting a certain number of a specific grade onto the scroll (ie: Savage Aim I for the first 11 successful melds, then Savage Aim II for the next 11 ...etc) I'll be stopping at 30 Crit. I really have no desire to buy/SB the number of SA IV that I'd need to get the scroll all the way to 44 crit. Nor risk blowing up SA III once the meld chance drops around 60%. I figure a SCH needs 459 PIE to break 5k MP (5005 if my formula is correct), if you throw in Pineapple Juice HQ and a party bonus, I'd need 429 PIE.

So in conclusion, I'll be scrolling : 30 Crit, 20 PIE , 25 Det
(Subject to change my mind down the road...again)