Darklone said:
Yet it's no comparison to using a weapon in this hand..
And bashing with a shield in your off-hand is?
Darklone said:
<snip>If the shield wouldn't be an offhand weapon, there would be no reason at all not to choose a heavy shield as the main weapon in your TWF routines and a light weapon as offhand weapon.
You post seem to be intended to prove that shield bashing with improved shield bash and a bashing shield as your primary weapon is superior to two-weapon fighting with improved two-weapon defense. But that's not really relevant, is it? The question is if shield bashing is the superior style - period.
Compare "short sword and a heavy bashing shield" vs. "light shield and longsword".
The former will yield a slightly better AC. Using a shield in your primary hand makes it harder to change (or drop) your main weapon, and you'll have to carry more weight.
The latter will give you a slightly better threat range on your primary weapon. Enhancing your primary weapon is a little cheaper. You're more likely to find longswords in random treasure.
All in all I'd say this is balanced.
The only reason it's even close is the
bashing quality, which to me signifies that the
bashing quality is "borderline", not the styles that benefit from it.
If you allow stacking of "spiked" + "bashing" it gets uglier, but even if that wasn't technically illegal, the problem would lie with the 2d6 damage one-handed weapon, not the style.
(Third option: Improved buckler defense, short sword, longsword. -1 penalty on attack rolls, no need for bashing quality. Fourth option:
Animated shield - slightly more costly, but no need for bashing quality.)