There was a bit of backlash, which of course is amplified by the arm movement, so two springs were added to the shaft in order to preload the arms. It appears to be very effective.
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This has more in common with the Morgan than the Wally. (Though the Wally was itself a decendant of the Morgan, so I guess cousin could be accurate) The Morgans have been very practical, heck there's some small mechanical changes that could be made to the Wally to make it a more practical branch. (but that's for a different discussion)Quote
A Wally cousin?