am181d
Adventurer
Do you propose to give every monster "Reflex as saving throw" and "Reflex as defense" stats?
Is 13/+3 really that confusing? For that matter, is it that hard to take 10 with a +3 modifier and figure out that that's a 13?
This isn't the kind of math I worry about in the game. I worry about all the idiosyncratic "I get a +3 to my +2 in this situation and a +4 to my +2 in this situation." It's one of the reason I don't like buff spells. As long as you can cleanly list all of your modifiers on your character sheet, adding any one number to a die roll shouldn't be too taxing for anyone.