RE: Blazers Vs 4 inch
With field tips, the fly wonderfully as they also do with broadheads. The higher, stiff profile provides enough air drag to efficiently stabilize the arrow.
The past two seasons I've used Blazers on ACC's at 305 fps and can group multiple fixed blade, mechanical and field tips all together.
Blazers are great vanes. I recommend a hard offset or helical for Blazers.