I'm using Hammered Rustoleum on the walls of my pop-up project. I put the first coat on full strength over factory primered plywood with a 4" foam roller but, regardless of how I worked it, I still see the roller lines after it's dried (looks like stripes in certain light). Even without the lines, the texture varies a little from dull to shiny so it definitely will need a second coat. I know in the past, I've used regular Rustoleum and diluted the topcoat with 25% mineral spirits and it looks like it's been sprayed on with absolutely no roller lines. Has anyone diluted the Hammered Rustoleum like that and gotten good results? Or any other helpful hints for getting rid of those roller lines on the topcoat?