Roman Heavy Cavalry Fighting Techniques

[Aulus Perrinius]

At the Battle of Strasburg we have the account from Ammianus where one of the clibanarii riders was crushed by the weight of either his armour, or that of his horse, or perhaps both.

IIRC Ammianius says that the guy fell on his horse's neck. Which would indicate to me that the rider got knocked pretty far forward (which would imply that the rider took a powerful wallop and it would have to have been to get through that kind of armour and wound him, and that his horse was going pretty fast) and so the horse went down because he had a grown man on his neck something that any horse would do (The weight pushed his head down and the rest of the horse's body followed). Besides if his armour was really that heavy why didn't the horse collapse the moment he got into the saddle?

Clibanarii would have found it difficult to engage normal cavalry and light horse as they would have been unable to out-run them, the normal cavalry and light horse then waiting for the clibanarii to become tired out and then surround and cut them to pieces.

What do you define as normal cavalry? Heavy cavalry job is not to pursue light horse (Unless you're Alexander and you're using the tactics he used) The late romans had light horse of their own and the clibanarii had bows and they had foot archers.

The description by Vegetius implies that its the weight of the armour that makes them vulnerable to capture. There are other references to the weight of the rider and horses armour in the thread about Late Roman clibanarii I put up.

Wasn't Vegetius talking about lassoes?