heavy cavalry engaging heavy cavalry

[Urselius]

But I think that we are looking at an evolution in riding styles, not riding styles being dictated by the type of equine.

Point taken on the depictions (just playing devil's advocate and someone who does not like the assumptions the ancients couldn't ride).

May I ask if you ride?

I have ridden horses and donkeys, a few times bare-backed in both cases, but I couldn't claim to be an accomplished rider. I have written a number of articles on cavalry combat, though concerning the Napoleonic period.