IMHO, the Beman Ventures (now called Bowhunters) are the best value in carbons. I've got about 10 dozen Venture 500's, they're that good. I found out early on that the low spined 500's shot best outta any of my stick bows, from 40# thru 55#. The 500's allow for a large range of GPP and FOC tuning, too.
Oh yeah, that .006 versus .003 (or even .001) has nothing to do with bowhunting as far as I'm concerned - it's not like I'm target shooting 90 meters for score, I just wanna kill critters at 10-30 yards. Besides, the Venture/Bowhunter shafts will stay lots straighter than any woodie. :D
Now, if ya gots the bucks, and yer shootin' 60#+ bows, the AD Trads are THE way to go for a heavy arrow and high FOC.