I am probably over killing this project, but I have a lot of plywood all 3-1/2 w x 12 to 72 L. There will be two pieces glued. Obviously clamped, but how to hold together initially? I was thinking pocket hole screws ( is there a need to clamp with this method) or Brad nails then clamp. Also would you cut to length now or wait until glue up is cured? TIA