Really no different than a standard board, just more sensitive. To keep the board on a beam reach or to bear off a bit in slogging wind, you still have to move/tilt the rig forward with the front foot near the mast. A little more care has to be taken compared to a board with more flotation in the nose, but it is still the same process. I don't think hanging in the harness helps with turning the board off the wind, this will add too much weight on the front of the board.
Once the board's nose is at least 100 degrees off the wind, you can pump if necessary to get on plane.
Be careful that you don't sheet in too much trying to add power if the wind is too light. This heads the board upwind quickly and you will stall.
It just takes a little time to get comfortable with how this board handles. Also, the larger and heavier the rig, the greater the problems if you are slogging or in light winds.
Stick with it, it won't be long before you figure it out.
Formula 160; iSonic 111; HiFly Move 105; Tiga 263; '85 Mistral Superlight.
Maui Sails TR 11.0; 9.2; 8.4; 7.6; 6.6; Maui Sails Switch 6.0; 5.2; Maui Sails Global 4.5; 4.0.