I'm using the mast track in the middle and when above 18-20 knots a move it a bit forward.
The sails I use to downhaul a bit more than recomended. I don't know what else do you need?
I have just received this R19 and I sailed just twice with it. Maybe I didnīt get used to it and need practice more. But I spin out even in downwind!!. Some tips would help.
Thank you again