Naturally, the longer you wait, the higher the winning percentage will be but the less plays it will produce. Ever think of doing that? Waiting for one or two more and starting your chase then with more money behind it? I would test the last five years or so and see what the results would have been. I can guarantee your win rate would jump. You'd have to up the unit amounts though to make it worthwhile.
Your idea is decent but I don't think this specific situation is very profitable as it currently stands (you may remember me from last year). Last year was unusual because the prior years you tested were unprofitable. I personally wouldn't play anything without a consistent track record for several years at least. Just my .02
Best of luck.
I have thought about the "wait longer" theory. What that entails then, is missing out on "Game 1." The reason why I didn't want to wait for a 4th game is because of the Game 1 record in years passed. It's been above .500 every year, and the bulk of those wins that you accumulate pay for the occasional loss. When waiting one more game, or longer, you end up having fewer plays... and if the "loss" still results as -7 to -10 units, then you need as many winners as possible.
For example, if you wait 5 games for this to develop, than only a 8 game streak will beat you. Last year the number of 8+ game streaks outweighed the amount of Game # 6, 7, and 8 wins and therefore put you in the red. Every year this has happened, which is what has turned me away from doing this.
I do remember you from last year, and your input is always useful. I also have been following your "Pulse" thread this year. How much do you think the rule changes have affected this? Scoring is up, but the percentage of overs-to-unders is almost dead even. Yet there have been HUGE streaks this year:
Colorado: 6 consecutive
Dallas: 6 consecutive
Detroit: 8 consecutive
Minnesota: 8 consecutive
Nashville: 6 consecutive
Ottawa: 11 consecutive (and counting)
Pittsburgh: 6 consecutive (twice)
St. Louis: 6 consecutive (twice)
Toronto: 9 consecutive
Vancouver: 8 consecutive
Washington: 6 consecutive
What makes these teams so damn streaky, and others so unstreaky? Buffalo, for example, had a season high long of 4 consecutive ONCE, and only streaks of 2 for the rest of the season.