In the Navy, we had both styles. With and without the plastic non-maring foot. It depends on how much space you have. It does help if you are trying not to leave a small mark on the face of the part. But seeing as this is the base peice you won't be able to see it under the aircraft skin. Is this correct Eddie?

Absolutely Beautiful!

Thanks Eddie, I have been trying to figure out how you did that ever since you did the first S21 wing video! Now I know know what to buy. Thanks again!