I posted about a RIA last week that I got good advice on. Hoping for the same about this one. A 3 year old Colt Lightweight Commander in 45acp has been posted. Says he has run 50-100 rounds through it. Stainless. Wants $700. Can I go wrong? I have shot hot .357 rounds a lot through a S&W, don't have any experience with the .45. Is the lightweight going to be hard to handle like a small 40 cal is reputed to be? Thanks.