I have a 1982 Trek 613 that I use heavily and want to preserve. There's a fair amount of rust inside - at least there is in the seat tube. I imagine cleaning inside the tubes before using the Frame Saver would be a good idea, yes? How should I clean it? I bought the tube brush that Park makes - I was thinking about using that with some WD-40 to scrub it. But what would I do after that - to flush the rust/WD-40 out of there? Should I spray water in and then flush it with water and finally blast it out with compressed air? Would letting it air dry after draining the water/WD-40 it as well as I can be adequate without posing a problem? I don't have a blower but I do have canned air, though I don't know if that would be adequate in this case. Thanks!