FlickySpinny said...
I'm almost always unhooked (prob one in ten jumps hooked in) just because that feels right to me and I can get far more lift from being able to fully extend my front hand forward and upwards on take-off than I can if I'm hooked in.
Mate of mine jumps hooked in all the time... and he bends booms and has once pushed a mast track deep into the board as a result of the loads he exerts on his rig when landing flat.
Whatever works for you.
Sounds like it's better / safer to stick with not using the harness lines.
As jumping is new to me, (only two sessions so far) all I'm up to now is- point board slightly down wind to get on the plan, lock feet in straps, build up speed, line up a swell or wave and launch. Been lifting the rear foot on take off, and holding it up during flight, then lowering it slowly just before hitting the water. My "jumps" are primarily flat, 60 cm high (max) and around 3 meters so across. Ultimately I wanna stretch that out to over meter high and 5-10 meters across

But gotta start in the shallow end of the pool I guess...
You mentioned, "Fully extend my front hand forward and upwards". I assume by doing this you're getting leverage off the boom? Bare with me, only been sailing for 11 months