For the riser, my son helped me with the flare pattern. He traced it out on my blocks for me to cut. I have had trouble in the past with flares because it is so difficult to match them up. I decided to try to cut both halves at the same time.
I glued them together with a piece of manila folder in between so I could seperate them once they were cut.
After the papper is sanded off looks pretty good. All it will take to match them up is a little sanding and some thin lams.