I did this last summer - each arrow had 3 fletched of feathers and blazers. The feathers were 4 inches. My average given to me with my chrono, with my set up, with 5 shots each, showed the feathers 3 fps faster at 2 yards and about 1 fps slower at 40 yards. It took a little longer to get the 5 shots at 40 and that's all the further I wanted to push it since I didn't want to buy another chrony. I'm sure others might get slightly different numbers with wind, temps, humidity, altitude, etc. The numbers are about what I expected though. I still like both for different things, but mostly shoot feathers.