Well if they're all natural they have to be good for me!
Thanks for all the advice on here, going to put it to good use. My next session if the conditions are good I've got a little list of things to work on:
-Get more weight into the harness and boom
-practice turning up and turning down to get used to the bear away for planing
-Get the harness lines set on shore
Also want to work on tacks with the big sail, I think I need to get the rig fwd faster as well as be more aggressive with scissoring my legs to turn down. Spent a lot of time stuck aiming too high and sliding sideways.