TT play at 15/30

I wouldn't call this preflop. You wont get a lovely flop like this very often. Your odds on calling here for a set is too low. UTG+1 TAG raises, always scary when an early positioned TAG player raises.

I'd rather cap to knock overcards out (Blinds, UTG and UTG+1 TAG may fold if I cap). One more small bet will often enough buy me a big pot. I'd either cap or fold in this situation.