I think that with all of our well thought out conversation on the topic, I think some folks are missing the main point Revvy, and others, are really trying to make: Who cares if there is/is not much benefit in squeezing the grain bag - the point is, why spread unfounded rumours as fact (such as Tannin extraction from squeezing - OoOOoooOOooOo) which give people unreasonable fears, which in turn give way to unnessecary brewing habits/practices that take away from the relaxing hobby that is brewing?
I mean really? The sky is falling chicken little - squeeze or don't squeeze who cares. Fact is, it won't hurt you much either way. And you will not go blind
+1,000,000,000