I've owned a 45 Tac for a while and am very happy with it. I also own a 9mm Expert and it is perfection: the smoothness of the slide movement on the frame, the lightness of the recoil spring, the lack of muzzle flip, accuracy. I would think that the 2 guns would be pretty much the same, both having the same length O-ring barrel, match trigger, etc, but the Expert seems just a bit more perfect than the Tac. So I'm considering buying an Expert in 45, but keeping in mind that the P30 and HK 45 loom in the near future. What do you think? Anyone own both a 45 Tac and a 45 Expert that can offer some comparative comments?