Interesting ...I was digging around tonight and it turns out I also have a Nodular Cast Iron crank (6 weights '64-'66) that Leo talks about in his first book about maybe being "the sleeper" of the 3 choices due to it being lighter and stronger due to the wide crank arms of the shaft. I haven't checked what the second edition says yet though.
BUT...seems like the later 12 weight is the choice of many (if not all) which says a lot.
Last edited by Countn'Carbs; 01/30/18 11:41 PM.
