Havnt tried it prone, I'll leave that for the bodyboarders

, I'd say im struggling mainly due to surfing my 8,2 sup for so long, I find I move my back foot sideways a heap on the sup way back on the board to get the rails engaged to turn, probs need to adapt to leaning forward more on a shorty... I'm heading down the coast on 3 weeks with a licence to buy so I'll see how I go, I'm leaning towards something around 6'6 with at least 2 5/8 thickness n around 21'' wide.. I'll post up what I end up with