I love blazers, don't get my wrong. I still think it's the best design out there. And they work.
But a couple of weeks ago I saw the name vanetec pop up on HNI and looked at their website. I sent them an email, requesting the free samples. And all though the design of the vane is exactly like the blazers, I now prefer the vanetecs. The material they're made of is IMHO better and what makes the difference for me is the base of the vane. The vanetecs seem to have a smaller base but seem to adhere better to the small diameter shafts I am shooting.
One small thing I don't like is that every vane has a silver logo on them. And I don't like shiny things on my hunting rig.

Frank