I bought one of the GSIRCA shaft machines from Greg. I have flat ground the kerf and ground the rake out of the sides (I hope I am saying this correctly) on a 60, 80, and 100 tooth 10" expensive blades for my Delta table saw and no matter how I set it up or slow it down I do get some chatter marks on my first pass. However I have found I can ruff cut 12-13 shafts per hour. I let them sit for a year after soaking them in Resolute for 3 min and they turn down great on my lathe with a four slot cutter on my Porter Cable router on my 39" lathe.
John