adam wrote:TWD=1 AC
if you have 40 BAB, that is 12 shield AC. I hope this helps.
Not really. That's 3 feats, and doesn't apply until you're level 40 - with all High BAB classes, and as mentioned ITWD doesn't stack with TWD, so tops out at 11.
A double-weapon user gets +12 shield AC at ER1, when those poor twd guys are maxed at 9 and 3 feats down for it.
Caylin it's not about which builds are the most powerful in defence or offence without shields, it's what reasoning allows shield AC to be forged at all on them when others are stuck with deflection; all weapons should be the same.
As for set items, red herring, unless you get the drop or acquire some other way you can't have it.