Thanks for your support guys.
Windaddict: Yes I damaged my knee over rotating forward attempt. Basically, I was out back and went for one off a bigger wave, with full power on (& fully sheeted in) I spun really fast in the air. I didn't have a chance to unload when the board hit the water. The board stopped but unfortunately I kept spinning with my knee taking the brunt of the load.
In hindsight (and in true "Im indestructible" male form), there was a lot of risks that I hadn't considered. My jumping is woeful on Star tack and don't have the control that I have on port tack, the wind was gusty and the chop variable....and it was solid 4.2m conditions. All that meant it probably wasn't the best day to be working on my looping 'technique'. Painful way to learn a lesson though

.
In future, I think I'll leave the forwards to you & Jman......instead I might keep working to refine my duck jibes and crappy tacks

.