I mean I guess he could have AT and, I would think though, that if he did have AT he would prolly consider bluffing with it OTR as actually I'm not so sure you're calling with an OP and he actually wins the hand anyway vs a reasonable section of your range... I've only played a few times with him but I'm not really sure this is his style though, seems a little needless, I think if he has a T it's prolly gonna be

or something like that but prolly not.
Think betting really small is kinda mugging him off a bit and just showing him some respect I think will bode well for the rest of the game, he's not folding a T for £200 but I don't think he has a T to fold often enough to worry about that, maybe he has QQ or KK in which case he'll defo call a bet (speshly KK will prolly call almost any bet) I think as well there is more chance of him slowplaying KK/QQ pre-flop than there is of him checking a FH to you OTR but not by much.
With all the evidence i this thread I'm going to predict that i) Adam Checked back, and ii) he either had 6's full or QQ.
