Time for me to get rid of the factory jobs on my Glock & XD. Don't know which way to go.... Trijicons, Mepro's, Tru-Glo, XS????? I was thinking Mepro's for the Glock, since they make the upgrade that Glock puts on as a factory unit & XS with a Big Dot front sight on my XD subcompact as it is more of a close-up work piece. What do you run/recommend? Why? +/-