The gate breaker feat = http://www.d20pfsrd.com/feats/combat-feats/gate-breaker-combat
Does it even work while sundering? Since you are already getting your str bonus from your normal sunder damage.
Damn I should have looked harder if the question had been asked before. The other thread doesn't give a clear answer though. Guess it's up to my gm to rule on this.
This isn't adding strength twice; you're adding strength once, and then also adding "an additional amount" which just happens to be equal to your strength modifier.
It's a subtle distinction, but it makes a difference!
nope, we have a FAQ that says that the wording here makes no difference, you are adding str twice. It's just that this is a specific override of the normal rule that you can't double dip.
Actually, my reading of that particular FAQ is that it specifically allows exactly this kind of "double dip"; it specifically calls out that you CAN add "a bonus equal to" in addition to the original bonus.
Plus, this particular wording makes it clear that you always get you strength bonus.
Regardless of two-handing or TWF, you get a bonus equal to strength.