For example:
1st round of combat
PCwinsthe initiative.
PC set his Expertise and decides to act last.
Minotaur attacks PC who used his Expertise for 3( -3 to attack, +3 to AC);
Minotaur misses.
Its PCs turn now, and he drops his Expertise and uses Power Attack for 3 (-3 to hit, +3 to damage rolls)...
I think it isnt very realistic to allow this cause the PC is concentrated on defense, and the battle is playing very fast and all....
Thnx for your opinion
P.S.This question is valid only if expertise can be used as free action
