Respect back at ya.
The primary problem with spreading to 2 hands in SD is
HEAT It can get pretty toasty on a heads-up SD table when you are, in effect using a 1:8 spread. Been there, done that.Starting the deck with 2 spots may be feasible. Secondly, if we assume the normal player/dealer card per hand content (2.7-2.8) and then compare a dealer dealing 7 rounds to one player vs. 5 rounds to 2 players, we get a net gain of 2.5 cards/ deck or about 5%. That difference in pen. is significant in SD. As far as a second player is concerned, you're presuming an intelligence level exceeding room temperature, where I am not.