this line wont touch 7 or 7.5. Take a look at the rankings. Brown are 31st in offense (27th pass/27th rush), Bengals are 18th in offense(14th pass, 22nd rush)
Browns are 18th in defense(30th rush, 3rd pass), bengals are 14th in defense(4th pass, 28th rush)
I'd look for the Bengals to get thier first win in the Marvin era, and I definately wouldnt give up 6pts with a horrid offensive team like the Browns. Just my opinion though