Please accept my greetings and well-wishes.
As someone who has read your Treatise on the Continued Value of Heavy Cavalry in Massed Combat, I wanted to extend my respect for your work and relate from personal experience that your key conclusions hold true in at least small unit actions.
Even a single mounted man holding only a shield can effectively fix the attention of a small number of lightly armed enemies.
I can certainly see the effectiveness of heavy cavalry acting in a forward defensive role or as a screen for attacking units. Calvary certainly has the ability to fix the attention of an opposing general. I would be wondering, though, what your thoughts are regarding the ability of cavalry to fill those roles in the face of a well-prepared enemy. If the opponent has sufficient heavy cavalry of his own, or massed spears, how would you suggest that heavy cavalry be effectively employed. I eagerly await your thoughts, at such point that it is convenient for you to express them – if you wish to do so.
Your most humble servant,
Sir Tomas Kosic