What do those Bohning Blazers have that are so good? Whats the advantage of them?

I like that they are very, very durable. Thay also steer the arrow very well.

Durability, and the fact that they are new are the big ones. The steep angle on the Blazer keeps the vane from cavitating, which is one problem vanes sometimes have, especially when trying to steer fixed blade BHs. That steep angle keeps the vane in "clean air" allowing it to do it's job effectively and efficiently. Whisker Buscuit folks love them because they don't wrinkle like other vanes do.

I used to shoot feathers, but as we all know, feathers just don't like to get wet. I placed an arrow w/ 5" feathers agains an arrow w/ 2" Blazers, and the Blazer hit exactly where the feathered arrow hit. I was sold. No more worries about rain.