I'm looking at getting a "power" sander and I'm looking for some advice or recommendations. I currently use Sorby's inertia sander that works well on the outside of bowls but it doesn't work to well in the center of the bowl. I'm considering the Souix angle drills and don't know if the slow speed or high speed is the one to use or should I just use a power drill. Any ideas or opinions would be appreciated. Thanks in advance.