I use to shoot aluminum with no concerns with tuning and broadhead flight but i let a couple of my buddies talk me into carbons which i have liked up until the last couple of years. I' ve replied about the quality of Goldtips on several other post. I' ve been shooting them for about 4/5 years now but i have had a real problem with them in the last couple of years. I bought a dozen last year and had to send 3 back that were split on both ends bout 3-4 inches up the shaft and out of the remaining 9 i had 4 that would shoot a broadhead. Giving them the benefit of doubt i bought a dozen about a month ago and about half of them are ok to shoot but two were split right through the green logo on the shaft and one actually had a dent in it like it had been heated and warped. I' m like rack, i have to many and it' s to close to opening day to switch but this will definately be my last year shooting goldtips. I' m not sure if i want to try another brand or not. I saw some the other day at a bow shop called super carbons that a company out of VA (nationwide archery) i think is the name of it and from all the ones the guy at the shop spun and checked were good. They have three types (supremes .001 straightness), (Magnums .003 straightness), and (Hunters .006 straightness). If i stick with carbons i may try a dozen of the Magnums and the cost is about the same as goldtips. I' m really considering going back to the Easton X7 Eclipse 2314 next season that i use to shoot. I never had a problem with the easton shafts being straight or shooting broadheads.