I have used a Jo Jan multi-fletcher for several years now and I'm really starting to hate it. I find fletching helical on carbons to be nearly impossible. I can never get the vane to set perfectly on the shaft. Either a front or back corner of the vane doesn't set well on the shaft (regardless of vane size). I've read the instructions, I watch the helical marks on the jig, I use an additional short vane on the top end of the clamp (like the instructions recommends when fletching short vanes) in order to keep the rear of the vane in contact with the shaft. No matter how hard I try or how careful I am about setting up the jig, it just doesn't produce the results I'm after. I'm almost to the point that I might sell it (I have four straight and three right helical clamps), so I might be open for offers :teeth: Anyone have any pointers on using this frustating machine?