Well...

[chief444]

I think it's close. I can see the check/fold line on the river here. But it sucks when he bets his AK (which he has probably 1/3 of the time or more) and you have to fold. He certainly has to be a bit concerned about your pf coldcall but I think he would also realize you would value bet TT or better on the river every time. He's not likely to lay down another AK or middle pair. But occasionally. Your bet has no value if called obviously. But it does keep you from getting bluffed out of half of the pot and every now and then wins you the entire pot. So I don't think it's really that bad of a bet. But I'd still probably c/f. I don't think he'll bet AK or lay down AK or better often enough to bet yourself. More likely than anything his turn call means he decided to show his hand down for as little as possible.