Thank you for the compliment. The Sienna is a classy casino, my favorite in Reno. They are also one of the few places with a liberal single-deck game in Reno, in which you may double on any first two cards. You should not ask permission to play, because they would be unlikely to reverse themselves. Your odds are much better waiting before coming back. Four months is pushing it on the delay, I would skip them a trip, and wait eight months.