Blend the fade area where you would normally cut in a handle just like the other 3 width fade areas. I use a bulbous handle and usually they come out slightly bendy, my choice but not necessary. I start with a 1 1/2" circle dead center in the handle, 2" out from that going both directions, I put a 1" circle. Two inches out from there on each limb is generally the widest part of the bow. Draw a line from that point to the outer point on the small circle, from there to the outside of the big circle and back to the other small circle and back to the other wide point. This will give you a basic, rough bulbous handle to be fitted to your liking.