My limp-wristed stabbing style?Follow

Okay, been using the Sneak Attack:
ROG/20 1: Increase Chance to Hit by 10000%
2: Chance to Critical Hit(50)
3: Increase Damage Modifier by 40%
4: Increase Minimum Damage Modifier by 200%

Have noticed something though, normally I backstab for 120 or so (yeah, my BS is still gimpy), but the times I have used Sneak Attack I have yet to break 92 points. Of course I never miss, but according to the description I should be doing MORE.

Now it is not indepth testing (only about 20-30 attempts, but I am just kinda curious.....