Well you live and you learn right? I've bondoed up the inside and all the nasty edges of my helmet, AFTER getting about 80% done painting it. No I did not completely ruin the paint job I have done. Just some touch up to do after the bondo dries. The best part though is that now the entire inside of my helmet is no longer lined with jagged fiberglass, but coated in a nice smoother coat of bondo.
Sorry for no pics but my sis has the digital camera with her in Germany right now.
By the way I can get a faceshield from Lowe's right?