Hey Jojo,
Here's a few.
-Don't let the fins hit you, and don't kick them trying to get on the board... They can do serious damage to soggy feet.
-Wind range will be bigger than you think, just gets harder on your legs the faster you go due to apparent wind.
- Try to keep board as Flat as possible when going upwind, play with this and you'll def see why. Yes pointing your toes will hurt until you get conditioned for it

- Don't stop if the wind gets light :-)... Speed is your friend.
- Stay away from shallow water...takes longer to stop and or turn around than you think.
- All combos have a sweet spot for angle Vs speed. You'll find that you can point very high and still carry good speed and it be fairly comfy on body.
Try to get that last few degrees of height (and carry good speed too) and you'll start working the body pretty hard.
- learn to go downwind at pace... Harder than you think, try figure 8 kiteloops if running square.
- careful when carrying it around that you don't damage it with your harness... Yes my race board has scratche/dents from letting mates borrow it!
Have fun bro, there is no feeling quite like roaring upwind on these things.
Chris.