I'm choosing between the 3" Model 60 and the 3" M-60 Pro. I am a big proponent of the 3" J-frame .22s and want a .357 next. I appreciate the easy maintenance of traditional stainless finishes and use a lead wipe-away cloth, often. I am not certain about the finish on the M-60 Pro? The S&W catalog indicates it is "Matte Stainless." I am not familiar with this description. Is it rather delicate, like the "Matte Silver" finish on my Model 317? I won't use a lead remover towel on my 317. Should I steer clear of the M-60 Pro for this, or other reasons? Is it worth the extra bucks over the standard M-60, which has the familiar "Satin Stainless" finish? The catalog does not explain these confusing variations. I'd appreciate any advice.