Main V in this hand is basically unknown, but is a regular player as far as dealers and other players know him by name.
Hero in BB, $780
Main V is UTG w/ ~$530 effective
Preflop: UTG limp, MP1 Jams $35, MP2 call, Hero call
Flop ($140) K♠ 3♦ 6♦
H leads $30, UTG call, MP2 fold
Turn ($140 main) ($60 side)
H $40, V $160, tank call
River ($140) ($380)
X, V Jam $308, Hero ??
My main thought on the hand is that I avoid a lot of issues later by either folding pre or 3! here. I think in this particular instance I should have 3! to cut down on UTG's limp/calling range, and just try to get heads up with the short stack that is generally jamming extremely wide.