In the process of working on my Jeep, prepping for paint. A few years back I had it blasted down to bare metal and shot it with some Varaprime, a self etching primer. Now that I'm to the point of really getting with it (finally!) I have lots of spots that have some light surface rust. Inside the tub, I'm just going to paint some POR 15 over the surface rust, it'll eventually be lined. However I'm not sure how to handle the rest of the body. Are the rust converters any good, will they effect the durability and finish of the top coat? I'm open to any recommendations, except for reblasting the body.