J.D. Steele,
Yes I have tested the Speed Hammers, and yes I think they helped a lot.
With the Ruger standard hammer off a bench looking through a 20 X scope I could see the crosshairs jump about an inch when dry firing with an empty shell in the chamber. After installing the light speed hammer, it's about half the weight of the Ruger hammer, and dry firing off the bench again, could not detect any muzzle jump. That was good enough to make a believer out of me. Any one can do that simple test but you may not see the muzzle jump with a low power scope, but one thing for sure, it's still there.
The # 1's have always shot very good for me and I'm not talking about "deer accurate" size groups, talking about sub one inch 5 shot groups at 100 yds. I use the # 1's for shooting the different Single Shot Matches. And in the last three events I've shot in 2008, won two and came in third in the last one. I'm not saying that it was the speed hammer that gave me those wins but I'm sure it didn't hurt.
ST
