I've been trying to find a good totals system for the NHL and have read through many of the tried systems on here and elsewhere. I think I may have come up with one that can work.
The premise is simple: Run a standard labby line of 4 numbers per team, each number being 1/2 unit (a $10 better would be 5-5-5-5). For each NHL game you bet the Over if the line is 5 and bet the Under if the line is 5.5 or higher. You combine the 2 outside labby line numbers from the two teams playing. So if you are just starting the bet would be to win $20 if your betting units are $10. If you lose, you add a number to each team's line. In the above example if the line was -120 and you lost $24 trying to win $20, you'd add $12 to the end of each losing teams labby line (5-5-5-5-12) The next bet for that team would be to win $17, plus whatever their opponent is at on their labby line. When the line clears, start again for that team.
I haven't done too much official backtesting so I can't provide numbers, but a quick look at the last 2 years seemed pretty good. I think one team got up to 9 or 10 numbers but it eventually cleared.
I'm personally using 1/2 of the numbers I used above just to test it out and my results are really good. I started on October 9 and including the NYR/Wash game I'm at +48.43 units. Will probably lose the Cgy/Ana under of 5.5 since it's 3 goals in the 1st period. Even if that loses it will be 46.43 units in 8 days. It would be hard to think of that pace continuing but I thought I'd share in case someone wanted to try it out.