15 hands is a luck fest .. good luck. :)
I played a tournament there about a year ago and it was 6D hand shuffled and cut about 75%. At that rate they are gonna shuffle probably after hand #12. That leaves 3 hands after the shuffle.
I know most think it is of limited value, and it is, but I count during the early rounds -especially in a luck fest. In the late hands of the first shoe you'll have some information as to if it might be a good time to make a move. I'd also try and segment track a little so after the shuffle you might have a better idea of what is coming at you on hands 13, 14, and 15. Adjust your play accordingly.
Start out very slowly .. there is always at least one guy, maybe more, that will bust out mid-way.
Generally early on I bet the minimum, watch the others, and try to bet the count and the players (which generally turns out to be the minimum.) My last time there I bet the minimum as was most everyone else and we were all experiencing about the same luck. I decided to go all in on hand #12, last one of the shoe. The TC was plus 2/3. Better now, than never! I was second to last to bet, the guy after me bet small also and I doubled up on everyone. Lucky me. But if the count would have been negative, I would have watched the shuffle, estimated what was getting ready to come out, hope it was favorable to what I needed, then make a determination on the last three hands on what I should do.
Good luck but see it for what it is .. a lucky shot to win. With a little game plan you might get a little luckier than the others.