it was a nice slalom session, big board big sail, a lof friends and nice weather, how good can it be.   

After nearly 2 hours non stop sailing my back decided that i had to stop. 

It was nice to see how far i can push it , i'm happy with the revalidation of my back. 

Unfortunaly the wind picked up when i left, nevertheless, it was a nice session

I had also the Gt 31 on, compared everything and nearly no difference, the same differences as with other devices.