A perfect day today blue skies and +25C, the only problem is no wind what so ever.
So I practised reefing, worked fine. I stole the idea from a guy called Max in Germany (there was a post on the Wooden Boat Forum, I will add the link later).
I also discovered that the boomkin interferes withe the rudder which means I can only turn the rudder about 25 degrees. I would like it to be at least 30 degrees so maybe I have to modify the rudder yoke a bit.