ORIGINAL: bigbulls
Be prepared to change out those blazers for 5" helical feathers.
I would be very surprised if blazers provided adequate control for those snuffers at any speed.
I've got the FOB's on standby just in case. I figure my arrow speed is going to be around 245 fps and I'll have 16 - 17% FOC so hopefully that helps.
I just need to figure out the best way to sharpen these things - they come un-sharpened.