Sev,
sorry I can’t resist and I just have to make a couple of comments on the safety issue
first of all I totally respect your wish to have a safety on the weapon, and if Glock made a nice 1911 type safety with a good positive clicking action, I’d seriously think about owning one and re-investing in training to effectively carry a handgun with such a safety on it again
having said that, as you know, a Glock or a thumb safety-less M&P ought to be used with a proper holster that properly covers the trigger guard
such a holster really becomes the “safety” of a polymer gun that doesn’t have a safety to actively disengage, and a very good one at that
once you have made the decision to draw your weapon and engage a target to make it stop, the act of drawing the gun out of the holster is essentially “taking the safety off”
off course care is needed when reholstering, and to make sure nothing gets snagged in your trigger guard when you do reholster, but that’s another discussion
rifles/shotguns aren’t carried in a holster so equipment or a twig or something could result in a negligent discharge, not to mention the fact that they also generally have a short take-up “SA” trigger system
therefore while I understand your rifle/shotgun analogy, I don’t think it truly applies
I just wanted to throw some potentially clarifying thoughts in there so that you don’t automatically limit your choices too quickly
I’ll also add that when I handled the SR9 I thought the position of the safety, and its size and shape made it difficult to manipulate quickly under stress (enough so that I probably would elect to carry it safety off, and that’s asking for trouble should it become inadvertently engaged) so that was a deal breaker for me with the SR9, but who knows enough practice may make this a non issue
also, if you go with the M&P, do a search on here about modifying its safety so that it has a good positive action, because I only came across one M&P ever that had a positive click straight out of the box. Actually most had an engagement so soft that they would have become more of a liability then help
anyway, there are some really good reasons for wanting a safety on a gun, especially if it has no hammer and a short, and/or light, take up, such as a potential increase in the operator’s margin of error before an ND happens, and more importantly perhaps, by increasing one’s time to react during a need for weapon retention
but with a good holster don’t totally discount an otherwise good handgun just because it doesn’t have a safety; striker gun + no safety + good holster = complete system
anyway, after that soliloquy, and based on your post, my advice is to go with an M&P…or Glock with a good holster system 