Let me throw another idea at you. A few years ago, I was working on a project that required holes and round end slots cut in the parts. After trying to sand the slots with a sanding drum in a drill press and fighting the wood the whole time, I found a convertible oscillating spindle/horizontal belt sander at Home Depot. It has become my "go to" sander ever since. While I still have my belt/disc unit and the assorted pad, belt and DA sanders, the spindle/H-belt still gets the lion's share of my work