Anybody ever try the surface master bundle by master industries? Been wanting to get a ball spinner for some time now but funds are kind of tight. I came across this and was wondering if anyone has used it and is it worth the money. Looks kind of neat that you can use a battery operated drill also to sand or polish. It costs around $70 for the spinning ball cup, the disc holder, a polishing/cleaning pad and a 500 and a 2000 abrolan pad. Or should i just keep saving for the real thing?