This data is all non-spirit surged SA crits vs the infamous Wild Rabbits
Code:
Melee Crits
429: 1
430: 1
431: 1
432: 1
435: 1
438: 1
441: 1
442: 1
443: 1
445: 1
450: 1
453: 2
454: 1
457: 1
Hume M 90DRG/37THF (gimp sub omg!)
125 D
88 STR
461 attack
Only things were equipped were weapon (Rhongomiant 85) and Crimson cuisses for sanity's sake.
Spirit surge gave +19 STR if that's of any matter.
And the overwhelmingly large amount of SA crits I got with spirit surge up were 458 and 442. I removed these instances from the above data.
Math says that my maximum possible crit with fSTR capped is 459 unless I did the calculation wrong, so I do not think spirit surge adds damage, or even D. I would jump a new wrank at 126 D and I doubt i'd get less than 5 D from spirit surge, so these 2 crits should show easily higher damage if D was added, but it's clearly not a direct point increase damage either. It's too bad spirit surge doesn't last long and I didnt have any NPCs to buff lock it on.. I forgot my magian specs QQ