Gene, I remember the old CB Associates spinners as well. Never had gool luck with them. Back in the days of Madera all the engines were being run on alcohol with glow plugs. If you got one too wet it would kick back hard. One other thing to remember is that these guys were competitors, they would practice their start up routine as well as flying practice and everyone on the crew had a specific job. Not really the same scenario where Joe walks up to Bob and asks him to hold his airplane while Joe applies 20 lb of force to the starter while Bob tries to keep the airplane from rolling back. As for the Mag engines, having the prop at the correct orientation really helps with a solid follow through to them started. Obviously this all just one mans opinion, do you remember how I started my pylon airplane there in Vegas. The bottom line is safety, use the correct equipment for the job and if your starting process requires two people make sure you communicate the process to your helper before you turn the airplane on.