I'm looking for polisher, but I can't find "Porter-Cable" or "UDM" 'cause I'm in Europe. I there are some "Makita" polishers on sale, but they are non-orbital, they just spin (speed is variable speed1 to speed6: 600 to 3000 rpm). So, just wanted to ask you - is it worth buying non-orbital polisher? What is the difference between orbital and non-orbital?