The other day i picked up a 123L boat!
Its the biggest board in my quiver (next to my SUP Starboard elements 9,8" 148L) and the only windsurfboard i have that actually floats.
I'm planning to do a few long distances with this board.. probably a few sessions from 100-200 upto 300 kilometres coming spring/summer. Lakes are still frozen at the time. We'll have to wait it out i guess