Slider progression
Actually, I took James' long bloop tube, added a sliding weight (one of the 1st models--my friend Bob Hontz was a tester on this one); then figuring the amount of air in a 22" to 26" barrel, cut the tube length accordingly for the short version, figured the varying size of the 3 sets of holes and the size/weight of the sliding fixture and the size/angle of the holes in it, then sent the plans to James on Aug 1. I tested the device Aug 8 at the Ennis Range. Had a rewarding day of testing----(Bob Hontz was a 1st tester on this one also)
Joe Youngblood