No upload images in WP forums?!
After checking your homun's Crit I got another theory in my mind: the non-S homunculi don't have the stat cap, only homunculi S!!!!
Thanks to the ridiculous evolution effect (huge stat bonus), the pre-S homunculi can break the 150 stat cap until they become S, then the stat cap is applied. Because the capped LUK (an example) is 150, making Crit 51 (51 = (LUK / 3) + 1)
: non-evolved vanil (typical stats).2nd image
: evolved vanil (over-increased stats).3rd image
: S-evolved homun, stat cap not applied yet (similar issue than job bonus stats upon job change, they start over when you change maps).4th image
: S-evolved homun, stat cap applied.
Also, in the 3rd image I noticed that its DEX was over 150 too (its DEX was 175), so when you changed maps after S-evolving your homun (4th image), the stat cap applied on DEX and all of its stats (Hit 424 before stat cap, Hit 399 after stat cap being applied). Don't forget that DEX does affect homun's ASPD