Well, that's nice... but I'll second the suggestion of the 640 Pro's sibling, the 632 Pro, as an alternate 'ultimate snubnose' suggestion. The 60 Pro grips, SKU #41174 0000, are a great hand fit to my medium+ sized hands, sufficient for the recoil, handsome, and a bargain at $43 + s/t + s/h from S&W Accessories.
Sadly, as has been said, the 632 Pro, the last of the three 632's to be released, is now gone. Besides the .327 Federal Magnums, it will chamber and fire .32 H&RM, .32 S&WL, .32 S&W, and even .32 ACP, due to it's vestige of a rim. I've shot all five in mine - poof loads to
HELLO! The grips are great additions for most J-frames.
Stainz