I have pretty much narrowed my night sight choice to Meprolights, $74 out the door, plus $10 to a shooting friend of mine to install(he has installed at least 10 other sets for other folks at the range, lgs wants $25). My question is the color choices. Green front/Green rear, Green front/Orange rear, Green front/yellow rear. I have heard several folks that like the green/orange configuration, but I am not sure. Opinions on choice?