Insurance Count of + 13
Here is the extreme example where as the the count of 13 should it occur in Single Deck it represents the some 13 of 32 little card have been removed.
- 32-13=19 little cards left
- 16 big cards left
But the pay of is 1:3 or .3333. Hence it a real good bet, in that the probability of occurance eclipses the payoff.