68 twin turbo dart project.

The rough bodywork was done 12 years ago and now we are blocking it with 180 grit on a variety of blocks from Durablock. I try to use the longest one possible and work in a criss-cross pattern. Initially I used a tape to create the straight body lines. Then I use a technique of blocking in one direction over guide coat then re guide coat and work the other direction. I repeat this process until its straight and the line is sharp. Then I re primed the car with PPG ECP17 high build primer. Then block again with 400 grit wet then 600 grit wet. This is where I screwed up. I dry blocked the car in 400 and 600 and it created deep scratches and uneven surfaces. More on that later.