Reduced harshness - DPM Springfield Armory HellCat Pro 3.7in Barrel HS H11 RDR Mechanical Recoil Reduction System

I chose to go with the lighter spring and immediately noticed that I didn't get that hard hitting feeling in my hand. I used to grip the weapon very tight but noticed that I had to relax my grip in order to obtain good grouping. It's like starting all over with a different handgun again because of the reduce recoil. I will say that I didn't try the other springs yet. I want to get familiar with one at a time so that I want to get confused with which one provides the best shooting experience.It is very easy to install and highly recommended.