I have fletched one arrow with them this year to see how they compared to my other arrows. It actually flies better because it has a slight twist to the fletching whereas my other arrows are straight fletched. I purchased a set of six to see how durable they are but as of yet I haven't had the opportunity or need to shoot "through" anything and I only fletched one arrow with them. I think cptleo1 may be right....I was very careful to heat the water to the exact temperature when fletching the arrow as this was my first experience with these. They are very tight to the shaft and I don't see how it could come off on a pass-through but that remains to be seen based on my own experience. I have shot it many time into my bag target and it seems to be asintact today as the day I installed it.