Does anyone have any experience with the TruGlo TFO night sights? See the link below. http://www.truglo.com/content/products/firearm/handgun_sights/handgun_sights.asp All my Glocks have Trijicon night sights on them (see link below). I like them but I wonder if the TruGlos would be brigher or whicher to get on target. They seem to be brighter (of course who can tell in pics). My Sigs have the Sig Light night sights. I can't recall who makes them but they are not much, if any, different than the Trijicons. http://www.trijicon.com/user/parts/parts_new.cfm?categoryID=7 I really want a new Glock 21SF and am deciding if I might want to get it with factory night sights or just the regular ones and switch them out with TruGlos. Any opinions would be appreciated.