Good thread Henry, I will be following it with intrest.
Your numbers are pretty close to agreement with mine. I have only .25 steel, and no lead of the same size, but after seeing your measurements, I think I can pretty well trust the numbers I'm seeing with my Acer Netbook/Linux/Audacity setup. And from your numbers, it doesn't seem the Crepe bands are much different in speed from the Sterling.I recieved my Sterling 107 Crepe bands today from Amazon. Couldnt wait to try them. I am impressed. I shot around 30 break in shots at 10 meters then set up the Chrony. My draw length is only 27 1/2" so with 3/8" steel i was getting 153FPS Avg. I drew to approx 34" like Henry does and I got 173FPS Avg. 457 lead was only at 135FPS at my draw length and 153FPS at 34" draw.
Working length was 7 1/4", no hand slap at all. I used my EPS for this short test.
I will definately use them for target with the 3/8" steel but I have recently tried .050 latex 7/8X5/8X7 1/2" long and get 185FPS with the same 3/8 steel and 165FPS with .457 lead so will stay with that for Hunting,
Can't beat the price for a 107 band set and Henry has already seen good life so I say give them a try. With my latest cut of .030 latex I am going through a set of bands every other day so this is a great alternative.
Thanks Henry, great find and thread.