Ok. We all know that power tools are inherently dangerous, especially if you don't give it your full & undivided attention. But we all have them, use them & love them. My question is this. For those of us who have yet to aquire, but are looking into, a powered polishing tool/system. What would the best choice be? I know there are many variables to consider. But for, say, tools & knife blades as one example. For the hobbyist. What would a good choice be? Weighing safety, function, safety, final outcome, safety, etc.... ????????????