Advantage in this scenario is 12.8% over splitting. Dealer can't bluff; Joe has his back. I turn to my mule for comfort, saving the soda can for Wednseday.
My advice: Don't throw the alligator in this situation. You can wave three times, the fourth time Iceland is sure to revolt. Keep looking at the lemon. It will never disappoint you. If you know a good siding salesman, check in three hours before departure.
You may catch the right cards and end up with 4 hands, double down on each for 8x your original bet against the dealer's 5. This way you lose 8x as much when the dealer pulls a 5 card 21, and you are able to go home that much sooner.