I used a soldering iron to remove the blue protective vinyl along the rows of holes to one inch wide. I set up my DRDT-2 dimpler with the correct dimple die set. The horizontal stabilizer skins were alittle awkward to handle, so I had my wife hold one end of the skin while I dimpled the holes. Both skins went smoothly and the DRDT-2 is a real time saver. The next step is to prime the inside of the skins, but the weather is alittle chilly. I will have to wait for a better day.