Where is a really smoking engine when you need one. To see the airflow around that ship would have been fascinating.
How to get VRS without descending? Something I really like to try. But let's think about it. In a very light ship, one should be capable to pull more and more power to stay in place, but the tip vortices could in this condition grow and have the desired effect. After all, there is never no lift. Could that be what happened here?