It is my understanding they use a 24 card shoe and take two at a time without replacement, shuffling after every "roll." This does effect the odds. Following is the probability of each total.

2 0.02173913
3 0.057971014
4 0.079710145
5 0.115942029
6 0.137681159
7 0.173913043
8 0.137681159
9 0.115942029
10 0.079710145
11 0.057971014
12 0.02173913

This would give the player an 0.35% edge by making a lay bet on the 4 or 10, assuming the player must pay a 5% commission on the win.