I glued the scarfed wood with WEST system epoxy mixed with 403 Micro Fibers and 406 Colloidal Silica. After the glue set (2 days), I sanded the excess off and trimmed each 24' length of lumber into 4, 3/4" battens. All in all, I had 3, 24' lengths of lumber, which produced 12 battens. I only used 10 on the ama and you can see from the pictures below how the battens are oriented.
That was the fun part. I'll get to the thermoforming in the next post. What a grueling job.