I am in the market for a 3913 of the type with the tapered dust cover and single side decocker. During the search I have noticed that some slide release levers are trimmer. That is, they appear not to stick out as far as most 3rd generation pistols. Some of the custom work I have done in the past has included filing down the slide release levers. The question, did Smith provide trimmer slide release levers on some pistols? Also, the 3913's with black hammer and trigger seem to have the larger slide release levers and the pistols with silver trigger and hammer seem to have the slimmer slide release levers. Is one better than an other?