Additioally, Stanzel offered a thousand bucks (50's bucks!) to anyone who could win stunt at the Nationals using a Monoline system. Noone won the money.
The actuator units for speed and stunt are different. The stunt one looks sorta like a spiral and the speed one looks like a worm gear.
There is a Stanzel museum in Texas (with a web site) for more information. I think it is owned and run by Dale Kirn.

downunder, I really like your graphic. Kinda reminds me of me when I had hair and was young enough to party all night

George