I've played with enough 6497 PAMS, time to venture onto other calibers. I'm really liking the GMT and Power Reserve Models. I've read most of what's on this board. The general consensus seems to be that the 2892/2 is a good automatic caliber, but requires heavy modification depending on the application. I'm still confused on the Power Reserve differences, the one at 5 and the one at 6, what is the difference? Is there a positions of the PR that is better because no modification of the movement is needed? And the GMT, I know it uses at 2893 caliber, but I get confused on what it means to jump to time versus sweeping? Please excuse my ignorance. I appreciate any guidance given.