Rogo, I use a polishing mop that I got from Halfords or B&Q years ago. It's got a centre hole which I then fitted a threaded bolt and two washers/nut onto. This then fits conveniently into your household B&D drill etc. I use Solvol Autosol from Halfords for polishing. As said above-polish with piston stroke, not against it, but no need to take things too far. Hope that helps. Regards Dave.