I can see why group trainers use this.. Technique has to replace strength for marginal personnel. I have seen LGS crew struggle with a shorty Kimber to overcome the heavy springs they require. Any semi auto shooter should consider their ability to rack their slide, and do a little physical training, if required. The pushup is still a wonderful training aid, albeit under used outside of the uniformed services. Hey, I never said man up, no sir, I never did!
Thanks for the eyes