Nothing beats time on the water! After 10 sails with my Slingshot foil, I have mastered nose lift control, albeit under 20kts of wind/board speed. After that, well suffice to say unintended Ariel manoeuvres are unavoidable.
The trick is to use your back hand to control the sails sheet angle, as usual, and also to use large movements of your back hand to shift the whole sail fore and aft to move the CoE (and Centre of Mass) forward or backward depending if you need more or less lift.
With this realisation I could then move the mast base to the centre, and regain a more normal stance on the board, with less mid-torso twist, greatly improving comfort!
I also just transfer my weight from front to back foot to control height (a technique I picked up from kite foiling). without adjusting mast position. Mast positioning does work as by moving the mast forward you are actually transferring the weight to your front foot and vice versa. Sheeting out when hit by a sudden gust gives you a quick drop in the nose as you are reducing power and transferring your weight forward. So many little techniques that you pick up for different situations. I have also shortened harness lines by 2 inch and moved forward slightly.
