I finally got my TFO's for my P228. But when I installed the rear sight I have a 1/16 + gap between the slide and base of the sight. The sight is all the way down in the dovetail slot so it can't go any lower, but this gap can't be right. There is no gap on my Glocks, it fits tight to the top of the slide. Has anyone else had this issue? I have contacted tru glo but thought I would ask on a couple forums. Here is a photo of the sight installed. Thanks for the help.