Does anybody here have any experience with the 640-1? My wife is interested in the new ones with the enclosed hammer in 357 mag., she also wants the CTC laser grips. She plans on shooting 38 spl +p in it, but likes the heft of it and the trigger as well. She looked at the 642 Airweight but it is too light for her. I like the versatility of 38 spl, 38 spl +p and 357 mag. What say you? Are these in limited supply? I can't find many of them, and they seem a little on the high side. Any good advice would be appreciated.