For this bend I decided to flip the angles around so that the vertical legs are spaced further from each other during the bending operation. However this requires thick shims on the angles so that that the clamps can reach over the vertical leg. As I started the bend a clamp slipped off the angle and dinged the skin. I was able to tap the ding out (mostly) with a ball peen hammer. Then I bent the skin with the angles orientated like I had on the left hand skin. I did buy a new deep clamp which helped. I had the clamped turned the wrong way at the start shown in image 2, the clamp orientation in image three is necessary so that the skins can be bent about 135 degs because of spring back.