Very nicely done video, but not seeing what you found so cool about the boats.... and I assume you mean ventilation, not cavitation.
Cavitation is a term used when your jet pump sucks air. This is a real problem with most of the inflatables on the market today. I think thats what the OP was referring to when he mentioned this hull doesn't do that, and from watching the videos I would have to agree . Pretty impressive performance from a 30 HP outboard jet.
