ahh... Netwon, such a celebrated physicist!
In terms of the pressing question, does that mean there is probably a range somewhere in the middle where there isn't much different. Pressed too softly and presumably that will absorb too much energy - pressed too hard and it would feel pretty awful I'm guessing (unless you can apply some sort of shock absorbtion in the handle) - so, I agree with Tom - well pressed is the optimum type of pressing!
I'm sensing that we should do some kind of Johnny Ball type experiment, where we get 3 bats - one pressed hard, one pressed softly and one in the middle and drop a ball from a fixed distance on to the blade and measure how far it bounces.