Anyway here is the story. When I start dimpling I always put the male dimple in the bottom of the C-Frame and the female in the top. That helps make sure the dimple dies are lined up with the hole, and not some random spot on the skin. This is not always possible but when it is I do it. Next, I always hold the female die down against spring pressure onto the male die. This prevents the spring from bouncing around and allows me to be much more precise with my dimples. Then I use multiple soft blows with the hammer to set the dimple. The purpose of this method is really two fold. You CAN hit the dimple too hard and harden the skin around the dimple which could lead to future cracks. It also lets me watch the reflection of the C-Frame arm in the skin to see when the dimple is properly formed and I can quit whacking it. I will try to explain with pictures...
|See the reflection of the C-Frame arm? Thats my reference. You can also see in the reflection my hand holding the female dimple down firmly on the skin over the male dimple.
|Next I start tapping and you can see my reference line (arm) start to reflect a small bow inward. That means the dimple is not yet properly formed.
|This is what the reflection should look like if the dimple is properly set. No cups or volcano's.