Quote Originally Posted by unosarta View Post
No, but it still requires you to carry a calculator and do a lot more math than some people would be willing to do. I personally would play it anyway, but it would be a turn off for many, and would seriously slow combat down.
"I hit for 17, so... 25% bonus... 4. 21 damage!"

I'm sorry, I just don't see the extra time being spent vs having to roll another handful of dice and add it all up. Potential players are free to bring up possible alternatives with their DMs if adding percentages slows their game down too much.