Re: preserving your frame
You all have watched the bike building shows on the tube? Did you notice that where the engine mounted on the frame they remove the paint. The reason for this is the paint will fertt away if you don't remove the paint( but only where the engine mounts touch the frame) and this in turn lets the engine mounts get loose. Then the engine gets loose you get to walk. I know some of you don't like that idea but that is what happens. You can prevent the engine from getting loose by checking the mounting bolts but sooner or later it will get ya. Loose a little paint or the engine.
Maybe I was a little to rough on all you if you got your bike built checking the engine mounting bolts once in awhile will probably be good enough. Don't you hate it when your out riding and have to pedal or push it home when the engine tries to jump ship! Which so far has not happened to me on the bicycle but I've got a good story about coming home from Sturgis, South Dakota in2006 from the bike rally new tires and 70mph close to Denver in rush hour traffic and I run over a Allen wrench and the back tire goes flat instantly and me and the old lady go on Mr. Toads wild ride. That will soil your armored under garments real quick.
Norman