RE: whats so special about blazers???
I have Blazers on my 3D arrows and so far, they are shooting great. I have not tried to shoot a spot shoot with them yet but when I practice, it is pretty easy to get 5 xs. The arrows group well and are quiet. Beyond that, they seem pretty durable and are holding their shape well. I guess take your pick, they all are good vanes.
The main purpose of a vane is to create enough drag so the front of your arrow does not become the back.