I'm using a 6 place Jo Jan multi fletcher to prep some beman ICS hunters and having troubles getting the middle 2 fletchings commensurate with the outside 4. All 6 clamps are the same offset/helical and I've also tried using straight clamps and I get the same results from the middle two positions. The middle two clamps will seat but will not provide enough stability to properly hold fletchings in place for adhesive to dry properly. I've tried applying tape to inside of each clamp to eliminate the clamp from sliding down over the fletching. I've tried using top weight (books) to push clamps down onto fletching and to ensure constant contact between fletching, glue, and arrow. I've tried switching different types of adhesive from Bohning glue, Fletch tite, fletch tape and I just can't seem to get the right bond that I prefer. After I've completed a row of 6 arrows, I will let stand for at least 48 hours and provide a gentle pinch-pull test on the fletching and most will not adhere to the arrow. I also want to add that I lightly sand down the arrow with fine grit sand paper to ensure no remnants are interfering with the glue's adhesion and then will clean them off with alcohol and let dry prior to adding the first fletching.
Any suggestions from those who fletch their own arrows or those using a Jo Jan multi fletcher?