You guys keep betting teasers and you'll get killed over time no matter what type of beats you get....be it good or bad.
Teasers are for SUCKERS. Trust me, if the house offers it, it's not to your benefit (like a hard 6 or 8 at the craps tables) and trust me when I tell you that you are playing into a house advantage that goes up to as high as 55% on a lot of teaser bets (depending on score of course).....
There isn't a person on the planet that can overcome that HUGE house advantage!!!!!
You keep betting teasers and the you will lose all your money. House edge for parlays is much lower and if you asked 500 sportsbooks owners what would they rather the customer bet..a parlay or teaser, 100% of them would say teaser without hesitation.
An underdog ML teaser pays true odds, which is your best bet. If you don't want to do that, a parlay with favs are still a million times better than a teaser. If you continue to play teasers and/or buy points on your flat bets, you will go broke fast. Do not play into the big house advantage (teasers), instead play into the house inefficiencies and you will be successful or at least be going with the best of it as opposed to the worst of it.