Once the joint is perfectly straight, I am ready to bond the plates together. I use a joining board and a .325" maple bar to set up preload on the joint.
Adhesive is applied to both sides and a maple bar is removed from under the joint pressed down. This causes plenty of clamping force on the joint. A warped piece of E I Rosewood is clamped over the seam to hold it flat. Wax paper is placed under and on top of the joint.