IMO the whole point of a 10-pointer is to make the lines so good that it's virtually impossible to lose. If Balty gets down early and the Houston pass rush chews up Flacco this could easily be a blowout. You should look for a play that likely won't get exposed.
Just my opinion cause if you lose at 7.5 you lose -110 not on the heavy juice of a teaser. I doubt it falls between 7.5 and 17.5 but it could be your day.
BOL