I have the 45c and the 2.0 9c; both are pretty much the same size. I like the 2.0 style rough grip, but won't be ditching the 1st gen 45c when and if the 2.0 comes out. My advice to you is to shoot and enjoy your full size 45 for a while; if you just HAVE to have a compact, get the 1 gen at the great price. I can't imagine that Smith would change magazine configuration if the 2.0 45c is introduced.