Proposal - make goo water tougher near the top
This helps to cut down on frustratingly slow bobbing up and down on the goo water, waiting for it to act like a floor so you can jump out and be on your way.
When your abs(momz) is < 4FRACUNIT, your momentum is cut inversely proportional to how close your abs(momz) is to 4FRACUNIT.
I don't think this will break any existing maps, at least official ones, but it will break demos.