I personally would be unable to tell the difference between the two based on recoil. I'd have to look at the weight printed on the box. It's a pretty trivial weight difference. We're talking about only 9 grains. That's not even 8%. And the other factor in recoil is speed: the 124s are going a tad slower which -- all else being equal -- would reduce recoil. It's just too close for me to notice.
