It was more difficult on the starboard tack, as I recall this was the case fourteen years ago when learning to kitesurf.
I edging the board which caused it to keep carving in, eventually my feet came out and my shins hit the defined edge of the Double Agent board (similar to a twin tip edge). Ouch! Some bruising was evident later. I headed back to the beach and walked back.
Once again I conclude that learning to use a foil board is not easy but I am making progress.
Modern freestyle boards are much easier to use and learn on, but I intend to persist with the Double Agent until I can cruise around and stay upwind.