I've been thinking about this a little bit lately.
Say you are playing with 80BB stack and make a standard 5BB isoraise which is called by villian. Pot size on flop is ~11BB, and you make a cbet of 8BB with your TPTK on 2 to flush board. Villain calls. Turn is a blank. Pot size is now ~27BB with 67BB left in stack. You barrel the turn for 20BB, villain calls. The river completes the possible flush draw. The pot size is now 67BB with stack size remaining of 47BB. Villain shoves.
On the one hand, it is likely villain has hit his flush. On the other hand it still sucks to fold TPTK with less than a pot size bet left. What if villain is representing the flush as a bluff? I wonder if it is ever good to overbet (or even shove) the turn against known flush chasers. It makes it less likely for you to get good value from Non-FD worse made hands but increases your fold equity against villain giving you more protection from suckouts. (Or even if it doesn't actually increase your fold equity, it means more of the money has gone in while you have the best hand, making your river decision easier. Also, if the flush doesn't hit, they might fold the river anyway, so perhaps you are even increasing your value against players who are simply incapable of folding flush draws regardless of the odds. )
Well, just figured I'd share my thoughts. Hopefully the maths is correct.
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