My department went with the full-size .40 with night sights and mag disconnect.
Both my personal full-size M&Ps are sans mag-disconnect because I use them primarily for IDPA and the disconnect is a pain. My 9c has the disconnect, mostly because I couldn't find one with the night sights that didn't have the disconnect. Since I plan to use the 9c for IDPA backup matches in addition to carry I'd rather not have the disconnect.
As far as a duty weapon goes, I don't much care either way. Quite frankly I think a lot of my coworkers (who are not gun people) need all the passive safties they can get. At my reserve PD gig I carry a personally owned S&W 4566TSW that has a mag safety, and it doesn't bother me at all.
Both my personal full-size M&Ps are sans mag-disconnect because I use them primarily for IDPA and the disconnect is a pain. My 9c has the disconnect, mostly because I couldn't find one with the night sights that didn't have the disconnect. Since I plan to use the 9c for IDPA backup matches in addition to carry I'd rather not have the disconnect.
As far as a duty weapon goes, I don't much care either way. Quite frankly I think a lot of my coworkers (who are not gun people) need all the passive safties they can get. At my reserve PD gig I carry a personally owned S&W 4566TSW that has a mag safety, and it doesn't bother me at all.