How is the wet jet coming along?
By the way, Laddie is absolutely right. You NEED sharp edges on that hull to cast off the water and throw it out.
I would go even further and advise you to fit spray strips sticking down from the edges to throw the water down.
Your original curved edges would have drawn the water upwards along the surface and thrown it up into the air. And you know what Newton's third law says. If you throw the water upwards, it will pull the hull downwards (equal and opposites).
Spray strips turn the water spray down and help lift the hull out of the water
The photos show two versions of my water delta, 46" span with either an Irvine 53 or a 5S 700 watt brushless.
The foreplane can be used as an airbrake incidentally when tilted up to a well-stalled angle. Might be useful for a turbine version of your model to overcome the residual thrust at idle. Or do you have some other kind of airbrake?