Regarding the initial tilt.......as I had put the gyro Down towards the wort and hence a wrong install I re-did the setup, but apprently it change balance a good deal
Now the initial tilt was only 12-13, and more weight drowned it!
But made a sugar-range-dilution measument!
And if you look at the figure you will se the curve is none-linear if we are below the tilt of 20, or said it other Words, you more or less can make one linear curve from tilt 0-20, and then another linaer from Tilt 20-90!
So to get a more linear approach the intial tilt should be over 20 the way I understand it!