BU opens K♥:K♦:4♣:5♦:, SB and BB call
9♦:3♥:K♠:A♥:
Flop checks through
Turn SB x, BB probes 50%, BU raises 75%, SB folds, BB calls
T♥:
Bu? Call, raise? Fold?
Calling is the worst option imo because while I ,once in a blue moon, beat some value hands that he rarely might block betting, maybe :Ax::Tx:, or :3x::3x: it's unusual that he would block bet these combos. So the question is between fold or raise? Fold because he has many Fl and some Str8 perhaps.
With :4x::5x: blocking some missed draws so not ideal, but probably don't matter that much. Top set rarely turns into a bluff but i'm wondering if this is one of those cases? Trying to rep the NF with K♥: after flop check back is probably bad.