One thing I would redo for a Kandui quiver is have two of my favorite board, with one slightly more volume. Say 30L and 32L. Enough so I can feel the paddle difference but still feels like the same board. Some of those lefts can have a pretty grinding current. We didn’t surf them a bunch but people came back gassed. If we’d done that for a week straight, 2 sessions a day arms would have been noodles. You don’t want a step up, because once you’re up, you don’t need it (most days) but would have helped on the treadmill. Plus if you snap one you kinda still have one.