Apologies I did mean raise, got positions mixed up
Either way i think raising here is fine, with a weaker kicker I'd be happier calling but middle pair 3rd kicker is a strong hand in BVB and I'm going to want to attack boards like this quite often in BvB. We can get calue out of hand like T9, weaker 8's and 6's so I think there are enough hands to go for the rasie immediately.
We can mix is 6's and weak 8's and some peels to keep ourselves somewhat balanced but A High boards are notoriously difficult to balance on so it's a question of how often you are going to attack the board.
When he checks the river, very few players at 2/4 are going to have an Ace here and be looking for a x/r. Ocdcasionally it will happen but more often than not he's going to have a weak 8, a PP or a 6 here. I guess he could be just giving up too but there are more than enough hands to value bet against on the river. I think checking a hand this strong is pretty weak on this board.