Ranking Cost

lol glad someone checked my math I figure I'd bound to make a mistake with all that adding and dividing of numbers...
Anyway as for critical yeah naturally your not gonna critical 100% of the time, I think i caps at 30% anyway however most ranks don't require all that high of critical see chart

R9: 30 critical hits out of 213 attack requires roughly 14% critical
R8: 40 critical hits out of 163 attack requires roughly 24% critical
R7: 50 critical hits out of 210 attack requires roughly 23% critical
R6: 60 critical hits out of 360 attack requires roughly 16% critical
R5: 70 critical hits out of 450 attack requires roughly 15% critical
R4: 100 critical hits out of 600 attack requires roughly 16% critical
R3: 150 critical hits out of 700 attack requires roughly 21% critical
R2: 300 critical hits out of 700 attack requires roughly 42% critical

The numbers are natural only theoretical and ranking the skill could easily cost you fortune if you needed 5+ charges per kill...
hmm time to throw a lot of gold at young raccoons while clad in cp- gear...