Flop Analysis
Flop A83cc, SPR ~5, and BU has more Ax and strong draws than we do. Solver wants us checking almost always here, with only a small c-bet or an overbet with very strong holdings. KTs with no club and no real backdoor equity is a pure check; the 1BB stab into 7.5BB is too small to fold out Ax and too big to be a real block bet, so it just burns chips with a hand that should be checked.
Note: Firing a tiny 1BB c-bet on A83cc with KTs and no club is a low-EV stab; this hand should be checked almost always.