I finished deburring the left flap including all of the edge deburring, etc. I started on dimpling the appropriate parts. The bottom skin was easy but the top skin took some thinking as it is a complicated shape to dimple. I used a combination of the DRDT-2 and my hand squeezer clamped into a vise to dimple all of the holes. I still have more dimpling to do, but it will be fast and easy. Next will be to scuff, clean, and prime! BTW - today is my birthday.