I have bare shaft tuned my release-shot compounds in the past. Some were quite difficult and, yes, hard on arrows, if they are not hitting straight into the target. I do think there is something to it, and when I have been able to get bare shafts flying well, I have always gotten fletched arrows with broadheads to fly well, and have the same POI as same weight field points, at least out to 40 yards. I don't know how necessary it is, but it can work very well. It can also tear up arrows in the process, if you are off some. Getting good bare shaft flight requires a torque free grip and being careful not to torque the string with your release as well. I read an interesting thread on AT by George Dixon. He was explaining how he bare shaft tuned each arrow to hit the X at 20 yards, then he went about fletching them. Should have a pretty accurate setup if you can do that. How relevant is it for the average guy? Tough call