Anyway - you use a slapper to move metal.

If some curved panel has a distorted bulge or too much crown in an area, you use a slapper file , smacking it with glancing blows - striking it in the direction you want the wave- swell to "disappear" to.



So now I pretty much got the big kink dent whooped and ready for smearing the stuff on.
Me and other pro people like to mix bondo and finishing glaze 50/50 all in one batch - it gives a much less tacky surface, makes it sand a lot nicer , and wastes lots less file board or bondo buster sheets.