Now had a few sessions on the 905, really love it when up on foil. It's nice and fast, and quite reactive/agile for its wingspan, but still feels very stable when I want it to, not nervous at all!
The one thing I have to say is that on a lake, it takes quite some effort to start at 86kg (without gear). with small chop that I couldn't use to push me, I felt I had to take a size up in handwing and still had to work hard to get the board up to the speed where the foil starts lifting. While up on foil, it's glide is so good that I didn't manage to stall it even once during the lulls.