For some reason, I can't seem to finish my tan canvas micarta scales without them looking blotchy. Example below. The dust generated by the coarse grit sandpaper is getting trapped and locked in by the finer grits. I'm brand new to this hobby and I was wondering what process you guys have to avoid this issue because I can't seem to figure it out. I'd like to get a glossier finish that brings out the design. Do I need a buffing wheel? Thanks!