Knowing nothing about using a lathe before starting this project, I asked a veteran wood turner who I saw at the Marin County farmer's market for some tips. He imparted some wood-turning wisdom on me and told me NOT to glue the whole stack up, but to glue a few pieces at a time, lathe, then glue onto that. He was absolutely right. If you're lathing by hand, it's very difficult to reach way inside the horn mouth with a HSS chisel and lathe with any degree of accuracy. I stacked the first seven slices and glued all but the one at the very bottom (the throat). Then, I mounted the stack to a lathe plate with 2 1/2" screws and screwed the whole assembly onto the spindle. Looking back, I probably should have only glued the four slices and turned that before adding more because the thickness of those seven layers made it difficult to reach way inside with the chisels. I ended up sanding it down with 60 grit because the flare is very slight with the first few layers.