In my opinion, an electric surfboard with optimally designed parameters. Reasonable size, lightweight battery with a large 3kWh capacity and energy density of 0.16667 kWh/kg (for comparison Onean Carver battery has an energy density of 0.10714 kWh kg - so only 2/3 density), sufficient power and solved engine and battery cooling + fast battery recharge as a bonus. Higher but reasonable price.
Booster button is what I really miss at Carver (if I’m on the edge of achieving planning), it would be enough for a few seconds.
Does the surfboard have a T-slot for attaching fins other than FCS II, eg. longboard fins?
Was there any mention of the Jetsurf Hybridfoil at the exhibition?