Hello, I just purchased my first handgun ever- a new Glock 19. Did lots of research and found that this was the best gun for me. I took it shooting (about a 100 rounds) and I just got done cleaning it and had a few questions: 1. Will "Gun Scrubber" spray damage, in any way, the polymer frame? I sprayed EVERY internal part of the gun. 2. In the instruction booklet that comes with the gun- are the points were it say to put oil the only places it should go? That Gun Scrubber TOTALLY stripped the gun dry. Works great. 3. Should I use any lube besides gun oil? 4. How often should I field strip and clean ( I know Glocks can take more abuse)? How often should it be totally taken apart and cleaned? Thanks!