I am trying to decide between getting the gen 3 and gen 4 g26 for cc. I've looked at other posts and specs on both but still not sure which to get. I've heard about people having problems with the gen 4s, so that's whats put me off about getting one. Is there a difference between the gen 3 and 4 in performance? If there isn't I don't think the backstraps alone really sell me on getting the gen4.