Got some more filler layed down and sanded off today. I've been struggling with a wave that I can't seem to get rid of where I welded up the original gas filler. I think my next attempt will be successful as I have hammered down a few high spots. While working with that, I also started to fill the vertical sections between all the dimples in the back of the cab. Slowly but surely getting there. Picked up a new gallon of filler the other day as well so I'm prepared.