I've been eyeballing these two. I have and old steel 85 I have on me pretty much all the time. I want to upgrade to a lighter model and these two have my attention. I have no real complaints with my 85 and the 6th round on the 856 would be a nice upgrade. I'm kinda stuck on the 642 though. Always wanted one and in the hand there is an obvious quality difference. It has a better trigger and tighter lockup than the 856. What are you guys opinions on these two? I dont need anyone to make my mind up, just would like some insight from owners of both.