thanks Airtwardo, you are right. I should have parked the handles straight away. Next time. I was concerned to see more twists developing as I rotated (or I was surprised that I kept rotating under the canopy) and I was worried the reserve might turn ground-hungry like the main. I'd had enough of twists by then.
Fortunately the good old 7 cell stayed flat while I kicked, flapped and spun underneath.