I'm beginning my research on my next handgun purchase and have decided I want a small wheel gun. For some reason I've found myself drawn to Smith & Wesson. Particularly the 642 What do I need to know before taking the plunge? Is it really that much more preferable to have one without a lock? And I'm set on stainless with a wood grip if that will change any opinions or advice. Thanks for your time. Wanna kill these ads? We can help!