[electrical]

Check raise on Five is way too tricky. With an open pair you risk a check behind on a BB street, and that's awful. Get paid while you can.

Getting the check-raise in, whoopee, you've tipped your hand and all but guaranteed that you won't get three bets in on a later street unless your opponent is a boob -- and then when presented with that opportunity on Six, you fail to take advantage of it.