Siena is the one casino in Reno that I haven't been to. Based on what you said, it might be worth a look. Most of the casinos in town have single deck games, but with "Reno rules," which mean doubling only on 10 and 11, no doubling after splitting, and the dealer hits a soft 17.
The best game I have found in Reno is at Boomtown, a few minutes west of Reno on I-80. Their single deck games allow you to double after splitting and double down on any two cards. Watch out though if you are counting. This pit knows they offer a good blackjack game, so they are paranoid about counters. Spreading from $5:$25 drew quite a bit of heat. Try to hit the tables when they are busy. It does help.
Also, if you get a chance, try the $19.99 (with Players Club card) all-you-can-eat lobster buffet. The line is a little long, but well worth it.