on the .357s and even some 44mags i can understand a DA trigger but on a 454 or a 480 thats not going to be used as a police pistol thers no point. and i think i am buying an SA next time around. i have a gp-100 and the Da on that makes sense because its not really a hunting pistol even though i use it as such. i was just wondering if there is some technical reasonin gbehind this