Hey guys, quick question... I purchased a used PM9 and I was surprised to discover that the front sight is a Meprolight dot night sight and the rear is from a Trijicon XS big dot night sight. Sorta strange the previous owner diddnt just stick to either Meprolight 3 dot night sights or a XS Big dot night sights but rather mix matched them. What do you guys think about this setup? At the range will this setup prove accurate shots considering its 2 different sight systems?