bj6d,
Where is the casino where you are playing? Are you sure there isn't a better option just a few miles away? Some of this depends on if you're wonging in and out. But, if you decide to play heads-up, then a 1-20 unit spread might make this playable (using the Snyder Profit Index). This could be accomplished by spreading to 2-3 hands when the count is favorable, and not just plunking 20 units out on one spot!