I've never had any issues with keeping blazers on with the Fletchtite Plantinum.
Im a big fan of Blazers. Its my understanding the 2in vanes need to be stiffer becuase thier so much shorter. I will gladly put up with some clearance issues when setting up new equipment for the accuracy I get out of them.
I've got 4dozen quick spin speedhunter 2in aswell, however, they have more noise than the blazers. I plan on fletching 3D arrows with them.