Looking at buying the first gun and the S&W M&P pistols seem to get really good reviews. Would it make sense to get both the 22 and the 9mm or larger caliber as a set for both the purpose of maybe saving a couple of bucks if bought together and the practical purpose of using the 22 for gaining skill and having the other gun for lighter practice and home protection? Does the 22 replicate shooting the larger calibers at least as the gun size and feel. I understand recoil won't be comparable, but since I really don't know what I'm doing, I just thought I'd ask. Thanks