First I'd like to thank ajames for the 16# spring. Just got back from the range tried out my my guiderod and spring. I shot light loads and full loads and I just have nothing but good things to say about the combo. The recoil was not any more noticable than the stock spring and target aqusition was alot faster. I had to get used to the new combo because to me it seemed that the reoil was faster but not harder and I found my self getting on target after the first shot much sooner than usual. Follow up shot or double taps was easier and the gun seemed to move around less. (back during recoil and forward as the slide closed) I was going to take some video and pics but eneded up leaving my camera at home.