Somewhere on this site I had read a thread on Sumac - wondering what the wood was like. A friend ran some smooth sumac through his band mill last year and just gave it to me. A lot of 4x6 and some 8/4 and 4/4. Growth rings are very wide - some 1/4" wide and there was a lot of movement from drying. The wood seems about as heavy and hard as cherry and turns OK. Tools need to be sharp to avoid tear out, but it's not as bad as redwood. I planed a few pieces and will watch to see how they hold their dimensions, but I don't think they will. The cup I turned is about 5 1/2" tall and the top is 2 1/4" dia. The first shot is without flash, the second is more like the real color of the wood. Anyone else have experience they can share?