My thoughts? Since I use 3d primarily for fun and practice I use the same arrows I hunt with. Also at the distances I shoot at I've never noticed a difference between a $65 set of carbons that are .005 straightness factor -vs- a $100 set of carbons that are .002 straightness factor. JMHO , but I see alot of guys throwing money away on the premium arrows and they dont shoot any better. I know they help the truly good archers out there who can put an arrow in the x ring at 60 yds 2 out 3 times but I'm not in their league and neither is the average archer.