B&M 3/6 flopped set, turn FH, too much action?

[jeffnc]

You can cap the flop for value, the same way you'd cap the flop for value with a flush draw if you are 4-way. Except in this case you have the bonus of possibly actually being ahead.

These kinds of "when do I stop on the river" questions are intellectually interesting, but in real life they so often turn out to be 50/50 decisions (which I believe this one is) that I really don't think it matters to our EV if we go one bet less or one bet more.

You can easily create some argument that has you ahead 50% of the time here. And behind 50% of the time. Or more or less, as you prefer :-)