Okay, not really any babes, but I liked the aliteration, and I thought it would ensure I got your attention. Worked, didn't it?

As the years have gone by the argument over lead versus polyester filler (often called bondo, which is a trademarked name, but could be any brand) has diminished somewhat. In part it's likely that the older guys who learned how to use it when they were young, and when it was the best (only?) choice have been dying away. Some younger guys have chosen to master the art of the lead stick, but then, polyester filler has been with us almost 50 years now (I guess that makes it "geezer" filler, however you want to interpret that). Admittedly the early stuff had some serious limitations, but as with most any product, time and technology march on. Today's products work very well, despite the old wive's tales, as long as they are used properly.

While searching the net for some other info I came across a good set of discriptive articles on how best to utilize polyester fillers and what proper and improper uses are to be used/avoided. Instead of trying to regurgitate it all here, or cut and paste, I'll post the link as it's fairly long and pretty detailed. So if you've ever wondered why polyester filler didn't work the way you thought it should, why the fiberglass work you did blew up, or why the filler work you did started bubbling after a few years, this will give you some insight. I especially appreciated his comments about sealing the BACK side of the repaired panel, as this has been one of my (many) pet peeves that I think is too often overlooked.

http://www.roadsters.com/filler/