Sorry for th blank response.

I clamp a "C" clamp to each side of the hull (with wood cushons) about 1 ft from the end. Then I use one long length of bungee and wrap it around the clamps and around the keel strips traveling up and down the entire length. Or use small bunges. I'm usually using dark wood on the outer layer of the keel strip stack-up so sometimes I partially drive in a thin finish nail to keep everything lined up. You never see the nail hole in the dark wood.