2/4 pair+FD: a case for checking?

[Poliorcetes]

Crypto 2/4

CO is 70/0/0/0.9 after only 30
BB is 52/2/0.7 after 50

One limper to me on button. I raise Q [img]/images/graemlins/heart.gif[/img] T [img]/images/graemlins/heart.gif[/img] BB calls, CO calls.
Flop: T [img]/images/graemlins/diamond.gif[/img] 6 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/heart.gif[/img] . I bet, both call.
Turn A [img]/images/graemlins/heart.gif[/img]. …checked to me.

I wouldn’t usually think about this and auto-bet. But on reflection there is a case for checking. Isn’t there?