Thanks for all of these comments.
Mast rake is not for speed but to help with reducing healing moment. As I explained the boat has heaps of power, too much for really high speed.
The sail is an old one cut to shape. It is very flat. I will do practice runs first to make sure new sail is worth while. I will also go to a broken A class carbon fiber mast so I can induce pre bend and lose weight. The boat is foam core and was 114 Kgs new.
I particularly appreciate the Hobie experience of actually going out there for speed alone. What speeds have you logged?. I will take that info with me.
As I have said I have used it once. Yesterday sailing at 15 knots boat speed in approx 15 knots of wind was okay as a start. I was hiking, not trapping and only one up and controlling the boat easily. I would crew when really trying to go fast. My crew will be just a tiller man. The main problem was the fullness of the jib and the way it was set as I had spent two days fitting the rig and ironing the most basic of problems.
This is really about the hull shape guys. I opened my mouth here to say that planing is worth working into the late model boats and so I am just playing with that.

Also, the rig idea to pull the mast over, yes, I have thought through that and might go there but I wanted something that could relate to buoy style sailing.

Also, I wasted the Hydras downwind yesterday so I am not feeling downwind has been so adversely affected.....but I was planing and they were starting to stuff.