A quesrion. Is the Shadow System available in .40? I don't do 9mm? I agree with Vigilante Sniper to a degree...A gun needs to feel good in the hands if you want to shoot well. I am a Gen 3 fan. I have a Gen 4 G22. The jury is still out on it. I have issues with the 'slimmer' frame of the Gen 4 (i.e. doesn't fit my hand well). I have one of the grip enhancements on it but developed some medical issues before I had a chance to wring it out at the range. If I decide to get ride of it, I may look at a SS....if they come in a bigger caliber.