Sorry,the "new" concave that I was refering to is the gen2 concave.I guess its not so new anymore.Ha ha. We are running a 9610 and harvesting small grains,oilseeds,and grass seed crops. The Kuchar kit consists of a concave,cylinder spider bushings,cylinder filler plates,beater and grate,steel beater curtains,many walker risers,and some precleaner mods. We do not use the cylinder filler plates because we didn't like the cyl vibration after a shutdown.We also took out the precleaner mods because we were getting a dirty sample.I think these two items are more suited to corn or beans.