5/10 NL, $1050 stacks.

2 folds, we open 78 to $35 from the CO, Button calls, blinds fold.

Flop 1 ($70): K54
Flop 2 ($70): K54
We bet $55, he calls

Turn for both flops ($180): 2
check, he bets $120, we raise to $330....

The button is a good TAG regular in our games, has the usual bag of tricks.

Who believes he is bet/folding more than 45% of his range on either or both of these boards?