It’s even possible to use a 12 inch tone arm on a Thorens TD 160 or a Linn LP 12. So would that be a reason to mount a 12 inch tonearm on these tables, because you can? I’m inclined to believe there would be a difference in sound between a 9 inch and a 10 inch arm on a Thorens. I would even make the radical assumption that cartridge matching would have it’s benefits too. Really, no need to check brain in at the door.