Compsand hull question?

I did the bottomside of my new compsand board. I was going for a flat bottom but once I removed the board from the back i noticed the bottome was slightly opposite from concave. I used the polystyrene that the blank was cut from as the rocker bed and the placed weights on the board.

Will this correct its self when I do the deck layer?

What could I have done wrong?

Keep well

i put a thin plywood on the table and plastic on top “nothing sticks to plastic”. the ply give’s you a flat bottom and smoothes the rocker curve.

uzzi