The Shinex versus the Pollux.... Festool really wants you to use 150mm /6" max diameter on the Shinex. I have the earlier version that Festool first brought to the US, so I haven't seen the newer versions being offered now which offer two different speed models .
I still wish the larger Pollux model would make its way here, but I'm not holding my breath.
If you do rig up a larger pad, post some thoughts on how it went for you.