I posted on this topic some weeks ago, but based on the number of emails I get asking about it, I thought it might be worthwhile to post the index numbers again.
These are for the Streak Sidebet, which allows you to wager that you'll win 2, 3, 4, or 5 hands in row:
For 3 in a row at 8:1, you need a win rate of (1/9)^(1/3) = .481 to be profitable.
For 4 in a row at 18:1, you need a win rate of (1/19)^(1/4) = .479
For 5 in a row at 38:1, you need a win rate of (1/39)^(1/5) = .481
(the 2 in a row bet at 3:1 is almost always a waste of time and money, since it require a TC of +14 to be profitable).
Derived from the stats at http://www.bjstats.com/bjsc.asp, here are the high-low decision numbers for the Streak bet:
3 in a row: +6 or greater
4 in a row: +5 or greater
5 in a row: +6 or greater
