I use Tharnes for SA damage, you CAN get Earth IV, Wind IV, full Dark and full Cunning/Guile with halfling. But that is literally ALL your AP. I like to have the extra AP to spare when they come out for prestige line for monks. With the same build halfling comes out at about 60 less HP. And furthermore my extra feat goes towards my past life feat to make my fists 2d12 at level 20.