I'll give it a try, but don't you lose out on rolling performance on smoother tracks?
It's always going to be a trade off. I set my pressure based on what the majority of the spin will be. If I'm strictly tarmac I'm up in the 40 area.
Once I hit off road though I'll drop it down.
I'll trade grip on wet slimy roots and rocks for rolling performance any day. It just makes me pedal harder.