I went to a WB a couple years ago and was shooting 4" vanes. After replacing a half dozen arrows (vanes) I decided to try something different. My local pro-shop asked if I have every tried a 2' blazer. I tried it and it worked perfectly. No more ravelled vanes, no more torn vanes and more accurate. The reason the 2" blazers work so good with the WB is because they are more thicker and more durable than the 4" vanes.