I check turn all day OOP but I think this may be a leak. The one benefit I see is that typical unknowns now put you on missed overs usually.

My pokertracker sample is not big but I seem to have made a lot of money by people not giving me credit for anything after checking this turn. Some ppl will value-bet hands like 99 on the river if you keep checking to them whereas they would possibly fold to a 2nd barrel.