So I originally started training and shooting matches with Glocks but for the last two years I've been shooting a M&P9. Of course my wife has really taken a shine to my old Glock 19 and has claimed it as her gun. So now I'm stuck stocking spare parts and magazines for two systems instead of just one. I'm thinking about switching back to Glocks but I'm just not sure. I really like my M&P's ergonomics and trigger, but I like that the Glock is slightly simpler and easier to work on. I'm just trying to decide if the pro's of the M&P outweigh having to stock extra parts and mags.