I am very impressed with this guy:
I have done a single-handed gybe in much lighter conditions than this. I end-for-end the spinnaker pole, but I keep the main under control the same way this guy does. I never leave the mainsheet all the way out and just let the boom swing across.
s/v Laelia - 1978 Pearson 365 ketch
s/v Essorant - 1972 Catalina 27