Ok, haven't posted for a while...been busy with a new restoration project. I have some updates and a tip that may be new to some. My friend told me about it and it works great....Liquid Guide coat. There are many different ways to guide coat panels but the spray methods are most popular, there are also the dust on kinds. I have tried them and this is by far the cheapest and best method. Simply take acetone and pour some dark colored basecoat toner in the can, not much. just a little to color it. Then shake it up. Pour on a microfiber cloth and stain away. the acetone evaporates too quickly to hurt hardened 2k primers and epoxy, I don't know that I would try it over self etch or spray bomb primers that aren't harded. This goes on like stain and gets into the areas a spray mist can't. It will show up very small sand scratches left over that spray and dust methods won't. Since it is a liquid it get into every pore. I highly recommend it for cost and worth. Here are some pics.

After Sanding some.