I have tried to figure this out by reading posts on the message board and reading review, but the ones who comment on the power of these frames seem to have different opinions. Most state equal or nCode 6.1 95 is more powerful. You who have tried both what do you think? Also, any diff betw the early, so called "white but cap", version of the Prostaff Classic and the later, so called "black but cap", version? I am considering the 16/18 pattern models of these frames (but I would guess the concluisions would tranlate to the 18/20 models).