[dsraven]

check out a google on shrinking discs, it will help you understand the theories behind shrinking a high spot.basically a shrinking disc is a flat surface that is spun on an angle grinder against the surface, it only hits the high spots and they get hot, then a wet rag is used to cool down that hot spot so it shrinks. some use an iron from the laundry room even.it only has to get hot enough to make some steam so you could try it if you can snag an iron without the boss seeing. then hammer the low spots out to be high spots and continue till you get it flat. hammer on dolly will expand, hammer off dolly will shrink. google a few methods or just try a few methods for some techniques.