I have decided to go with a Pope and Young style of fletching.
I will use full length feathers that will be shaped by using a chopper. A chopper consists of and anvil bottom or flat steel surface and a cutting top portion.
You insert the feather and strike the top cutting bar with a rubber mallet cutting out the feather.
I use left wing feathers so I needed a left wing chopper. The only style of chopper that doesn't have a wing configuration is the banana because it is shaped the same way in either direction. If you look at the two turkey feathers shown the one on the left is a left wing feather and the one on the right is a right wing feather.
Notice the shapes are different. Either could be mounted straight but helical configuration is by which wing it comes from. I am using feathers from a left wing of a bird. I never try to get two fletchings from one feather and I cut it a few inches in from the heaviest portion of the quill.