I have had a couple of advances in recent weeks.
One is riding in "skiing position" with both feet together (more or less). This means I can do foiling foot swaps with fairly high reliability. It's also fun to ride around slowly and cruise in this position. If you watch Greg Drexler's videos he does a lot of riding with feet very close together and just doobing around having fun. Here's a link.
www.google.com.au/search?q=greg+drexler&source=lnms&tbm=vid&sa=X&ved=0ahUKEwjKoq-8-K3YAhUMybwKHfQHDKYQ_AUIDCgD&biw=1440&bih=776I can't do the Greg Drexler stuff, but I feel like I can. ;-) I get to doob around and play and that is great.
What this has lead to is that I am finally making progress on 360's. My foil really likes to glide tight and slow through transitions with my back foot on top of the foil, and most of my weight on the back foot. This means I can do super tight carving transitions, and I have managed to pull off a couple of dry foiling 360's. It's way unstable in this position, but that's the point. It turns and carves and that's a thing of joy.
PS We tend to either start or finish each session with a 4km upwinder. You ride out a bit, point the board upwind, then charge for about 20 minutes. On the return run we either carve lots of turns, or go as fast as possible downwind. It's a hoot.
It might be a little counterintuitive, but sometimes practicing transition after transition can be less productive. You crash a lot and don't learn a lot. Doing really long reaches gives you heaps of riding time with a lot less crashes. It's quite rewarding and you are doing heaps to develop your muscle memory for foiling. Intersperse that with focussed practice and the fun level is a lot higher.