I have been looking for some night sights for my G19 but can't decide on which one to get. I know that it is probably personal preference but just wanted some opinions. I am thinking about getting the tru glo tfo sights. They glow very bright in the day and night. But they only have a 90 day warranty which worries me. I looked at meprolights and trijicons and can't make my mind up between the three. What kind of sights do you guys have and which ones do you recommend I get?