Playing no-limit hold-em cash game, I am out of position drawing at a flush against one opponent. The river card comes down without completing the flush, but it does complete a potential open-ended straight draw. Assuming I have bet the flop and the turn as a semi-bluff, how often and how much should I bluff on the river?
What parameters are relevant? For example, how does the pot size and opponent stack size effect the decision?
Edit: typical example, I am holding AhKh in the CO, 25c/50c blinds:
Fold to CO
CO: Raise $1.5
CO: Raise $3
CO: Raise $6