Been reading the post about cleaning the Glock's. I just got a 2nd gen G17 from my dad that has only had 3 clips put down the tube. i more or less stole it from him for $200. Back to my ?... the only thing he has ever used to clean and lube it is WD-40, i'm not talkin a little spray here and there...i'm talkin about dropped into a bucket of WD, put back together, wipe off the outside, and put in the safe. It's never had the "upgrades" done to it so should i send it back to Glock and have them do what needs to be done or just clean it up myself and use mobil-1 like i do on my 19?