Peter, your comment on selling the effect is absolutely vital. The gambler v magician effect is otherwise quite a boring effect from an unattached viewer's perspective. The storyline creates a world in the audience's imagination, and creates the effect. The poker deal, on the other hand, tends to create its own interest.
In the context of the Marlo-Gardner deal, (which is a separate topic), I like David Regal's 10 second handling. The only handling change that I make is to reverse the royal flush. So when the spectator deals the hands, the flush shows face up. When the first card turns up, they pause the deal, and you tell them don't stop. They continue the deal and can't believe what's happening.
Also, try Chand Long's Shuffling lesson with five stacks instead of 4. In the dealer's hand, place the DeadMan's hand (Aces over eights) and in the spectator's hand, place a royal flush.
Bye for now