I recently purchased 3 sets of Ameriglo Sights: 2 Hackathorn sets 1 set composed of: GG-112-115LG front (.115 Lime Green luminova) and GL-409 rear (.164 rear notch black classic). (pictures linked in model number if you're interested) I also purchased the Ameriglo Sight tool Gtool2. I forgot to get the front sight tool, but I think one my local shops in Phoenix carries it in stock. My question: When installing the rear sight, do you spread loctite under the rear sight prior to putting it on the slide? I ask, because I think I remember watching a video of a gentleman who did this. And, if so, would one want to use red or blue loctite? Also for the front sight, red or blue? Thanks in advance for any who answer.