so i think i have changed a bit swimming, when i started ( all of a year ago ) i kept my head above water way too much... i think it was always.
but now i try to keep my head in the water as much as possible. the big change is of course that i am spending i would guess 75% or so of the time looking under water rather than the spinning world as i turn my head sideways for air.
seems like now the real world is underwater and the odd place is the air. pretty nice change!