[Why do shoe games use an even number of decks?]

No reason. Some Texas casinos have 5 deck BJ and of course single deck is an odd number.

Ok. Thank you.

[Why do shoe games use an even number of decks?]

Not that I can imagine a reason, or that it matters, though it might help in understanding the game, but why do shoe games use an even number of decks? Any ideas about this?

[Mind set - The professional player's edge]

If I'd've had to define it, that's what I would've come up with but wanted to be sure. Thanks for the clarification.

[Mind set - The professional player's edge]

"...head to head from 3rd base. "

I'm not learned enough to know what you mean here. I think of head-to-head as one-on-one so no base designation applies, or they all do. Am I misinformed? What exactly is the meaning of "head to head from 3rd base"?

Thanks.