ORIGINAL: strutnbuck
Got to thinking about it this morning. Went out and checked. It was the same fletching on each of the 4 arrows that came off. Checked vane alignment with WB and the vane was just hitting the rest wiskers on the bisquit. So I am going to adjust the knock and hope it's that and not the bow being out of tune. We'll see, but it shouldn't be the adhesive.
I think you've solved the problem. I've noticed alotof problems come from the vane hitting the black bristles on a WB.Also, when cleaning shafts/wraps prior to fletching use 91% isopropyl alcohol, the 70% stuff has oil in it.