you've made great progress Nanmoo!

with the 6.0 you want a big fin to push against.. if your new board came with a dinky fin that might be some of the issue with getting upwind. i agree though you are kickin ass. in this pic it looks like your top cap might be a tad loose...

And contributing to not getting upwind is the need to sheet in more (shows in all these pics)

I think I need shorter harness lines for this kind of sailing.

Nope - your elbows are quite bent (compare to other sailor). The gurus all say long lines help develop all the potential power. Maybe move them back a cm or two, that can help auto-sheeting.

if winddoc set you up get a second opinion!

I saw your lines and yes, you could use shorter ones!

they felt nice today out at kook... but too long for straight line blasting at the nat.

love the commentary...considering this amazing shot