A pic would require three hands!
I didn’t mention that you are using your own hands as the fulcrum. Grab the shaft with your right hand about a third of the way up. Grab just under the head using the v grip. Pull the left hand to the left and righy hand to the right. But use your fingers gripping up top to keep the head facing forward. In essence you are using the fingers as a fulcrum but not in the traditional sense.
I can’t get the picture right! A better explanation would be good. You say that sevseveral fingers are used?
So it make a “N” or ” “Z” symbol. Do you hook with two fingers on the shaft and bend first down then up for example?
Starting size: 7.48" X 5.51" Currently: 10.1" X 6.4"
Heat is the key!