Does any one out there have this system by King Arthur Tools? I have the inflatable sanders for bowls but I chuck them into my drill press. I know I have seen someone with it in their shop in a photo somewhere. It may have been Steve. I want to know about the flex shaft and if it is really worth it. I hate to sand and have plenty of bench sanders, palm sanders, ROS sanders and hand sanders but I am still looking for that magic jelly bean that makes it even more easy. Good, bad or indifferent - I'd sure like to know.