When I bought my PT-145, the store had two in stock. The display unit and one in the back. I wanted to buy the one in the back but its trigger was not near as nice as the display unit, so I bought tha display. Maybe all those tire kickers had dry-fired the trigger into smoothness? Or maybe there's just that much variation between individuals in the PT-145 family? I dunno, but mine's got a pretty good trigger. Much better than a Kel-Tec P-11. Not as good and my BIL's Glock, though.
Velocity drop in the short barrel is significant. I chrono-ed 3 different commercial loads and got 700fps-750fps from all of them. I assume they would go 850fps in a 5" 1911?
IIRC, Taurus' manual says the PT-145 is rated for loads up to 200? 220? grains at 900fps. I don't know why they wrote it that way. Bad translation from Portugese? Anyway, I interpret that to mean that maybe a 230 gr. load at 850 fps is OK, since that would be similar to 200 or 220 at 900 fps. I use a load with a 185 gr. bullet going about 900fps. But I don't think that rating would allow a steady diet of +P. Just my opinion.