on average?

with my set up... 1-3 fps. Not exactly a world altering difference. They made 0 difference in trajectory like they claimed either. However, they are quieter in flightand they are tough as nails.

Got a Tom Redmond catalog yesterday. Nice catalog btw.

On the page discussing their custom fletching, I believe it said (off the top of my head) that a Quickspin is about 7 fps slower at 15 yards than a Blazer. It said something silly about this is something your dealer won't tell you. That just stuck out at me, but I don't know anything about it.

I litterly found no difference in speed compared to a Easton Vane.

The amount of speed gained or lost is directly proportional to how much weight you add or subtract from your arrow weight..........it has nothing to do with the design itself.

If your going from a heavy 4" vane set up to Blazers........you'll pick up a bit, going from feathers to Blazers.........you'll likely lose a bit.

Figure somewhere around 1fps for about every 3grs gained or lost. So with that model if you go from a 25gr fletchingset upto a 15gr one it would be an educated guess to figure you might pick up about 3fps.

Good info as always, thanks guys!

The ONLY exception to this rule I would mention is Quick Spins, especially if fletched on a helical. With that much spin you just as well tie a parachute to your nock....

I switched from 4" vanes to blazers and nothing changed.

when i put on the blazers that trimmed 18 grains off of each arrow and at 1fps per 3 grains that comes out to 6 fps which is about what we got of the chromograph at the proshop