[TakeMeToTheRiver]

This is a very clear call -- all of the factors you point out might lead me to feeling that I was behind a majority of the time -- but we only need to be ahead 7% of the time for this call to be +EV. I think we are ahead at least 25% of the time against low limit, virtually unknown players.

For what its worth, I would likely call this in the live games I play in as well.

Edit: I think the protected pot theorem doesn't apply very strongly -- I think you can rule out a complete bluff (like a busted flush or straight draw), but a weaker K or other two pair hand is very possible.