As Chas said above, this is all just "conversational", but, you have to admit that the European organs have all tried to emulate the Hammond sound in one way or another, even to the inclusion of drawbars on their instruments...ditto the Leslie cabinet, either licensing the speaker system itself, or attempting to develop their own version...Wersi's Wersivoice Leslie simulator, for example.

So yes, I think discussing the tonewheel, at least for comparison, is reasonably relevant.

Ian