there is a fault in your calculation (tested with FB stats)
i put in 7%amp compare with 10%dmg n 16%dmg.....it shows average dps n crit damage of 7%amp is even lower than 10%dmg by 200dps @@
i tried to muck around the output again n pretty much it shows 7%amp = 8%dmg wtf this gotta be wrong right?