Keel twist

[shine]

block her up on either side of the transom, and forward on the chine, and one block on the keel towards the bow.

If the cap is still on, then great, it helps to keep an empty shell from oil canning.

Do this before installing center stringer.

If the boat is on bunk trailer, then you really just need a block up towards the bow. Im assuming the box stringers are still in the boat?

core the sides last