Spring vs. Diaphram Clutch

["Mark Meany" <mark@basecamp.mv.com>]

Joe - Over the past few months, I've seen where you've expressed a
preference for the diaphragm clutch introduced with the 4A. B.Piggott's book
indicated this change as being a retrograde step; the older spring clutch
not as prone to slip as the lighter pedal pressure diaphragm variety. I'm
reaching the point where I've got to decide which way to go. Will you give
me a hand & explain your preference?

Thanks,

Mark Meany
Keene, NH
TR4A CTC 62486