Ok, I'll post the first reply. just some answers to your retorical questions and futher observations.
first - i don't care what sights you have on the weapon, it will put a hole exactly where the gun is pointing when it goes "bang". This includes fancy laser sights and scopes. It is up to you to adjust the aiming to match your sighting.
Second - if it don't stink, it ain't gonna work! Muratic acid works much better than apple vinegar when you want to etch something. Tolulene is a much better cleaner than nail polish! i don't realy want that piney- fresh smell in my GSR.
third - if you had to deal with a bunch of Mall Ninjas every day, it has to wear you down. I think a lot of people come into gun shops wanting "confirmation" of their opinion and not advice. it is amazing the change in attitude when you can honestly as for advice, and accept what you hear.(with a grain of salt of course)