thehammerdog, I've a '99 CAAD3, a '98 2.8 and an '89 3.0 CR (last two with the cantilevered seatstays) all with mucho milage and multiple builds. These are long lived frames and very race worthy (I just recently removed my aerobars from the CAAD3 and 3.0).
Issues? Don't try to remove a dent and inspect the drive side chainstay for
deep gouges from chain suck. My '89 has a couple of shallow chainstay gouges that are over ten years old and those are a non issue. If the frame is to have it's paint blasted off be careful at the center of the main tubes, it's pretty thin. IIRC Cannondale used Dupont Imron paint, a pretty tough, durable paint. Some who've stripped/media blasted their older C'Dales have had them powder coated with excellant results.
Brad
My CAAD3:
