I like single action and I will shoot it a lot for fun so is there a reason I would bypass the 637
You may "like" SA shooting but is really not appropriate for a DA revolver that is going to be used defensively. That and the more SA shooting you do with this gun the less DA practice you will get in.
You may not believe this but if you learn the correct DA technique your groups will be smaller than shooting single action as long as you have the hand strength to do so.
As to why the 642 is probably the top snubbie made...Because of the totally enclosed hammer very little lint can get into the action. There is also no hammer to snag on the draw. Snubbies with hammers also have a tendency to wear holes in pockets and clothing.
Bob
