I bought a PT1911 when they first appeared locally specifically as a test mule to modify. After 500 trouble-free rounds, I replaced the "guts" with Ed Brown "Hardcore" series parts. Unlike other people, I had no problem with them fitting in the Taurus. I did have to work on getting the night sights to fit, but I would expect to have to do that on most any pistol. It has around 2k rounds through it now with no problems. I still hate the garish stamping on the slide... I'll polish it off one day.