I answered the question myself reading the four articles:
Custom Chromoly + Internal Lugs + Silver Ring Custom Chromoly + Internal Lugs + Silver Ring Custom Reynolds 753 + Internal Lugs + Silver Ring Custom Nivacrom + Internal Lugs + Silver Ring
...was pretty satisfied with the answer.
Maybe what you really intended to ask that would require first hand knowledge -
particulary from those who actually built them or handled the material logistics for them was:
"What was it like building these various generations of 3Vs? What particular issues arose? What techniques were used and how were various problems overcome? What led to the change of tubings with each generation or revision in tubing?"
(Those are details that the articles don't cover enough...in my honest opinion.)
Like the current original stiffness discussion...those are details keep a nerd like me paying attention for good chunk of time.
Robert Shackelford San Jose, CA USA
Quoting "Jon M. Crate" <Jon.Crate@FAI.US>:
> Been all through that several times back when I picked up the frame
> - both the CR site and the link to Bob Hovey's site - great stuff -
> read every part of it, some more than once - same with the 3V
> Each of 4 articles say 4 different things, others are just cryptic.
> Figured someone might have more or first hand knowledge.
> Jon M. Crate
> Marietta, Georgia USA
> -----Original Message-----
> From: email@example.com [mailto:firstname.lastname@example.org]
> Sent: Tuesday, July 06, 2010 10:52 PM
> To: Jon Crate
> Cc: 'P.C. Kohler'; email@example.com
> Subject: Re: [CR] Frame stiffness NOW 3V
> Under > Italy > Masi at the CR website...
> Dale provides a link at the bottom to a site at which to get
> Robert Shackelford
> San Jose, CA USA
> Quoting "Jon M. Crate" <Jon@FAI.US>:
> > That reminds me...
> > What IS the tubing in the 3V?
> > It seems to have taken a few turns, but I have not seen anything
> > definitive.
> > Thanks
> > Jon M. Crate
> > Marietta, Georgia USA
> > -----Original Message-----
> > From: firstname.lastname@example.org
> > [mailto:email@example.com] On Behalf Of P.C.
> > Kohler
> > Sent: Tuesday, July 06, 2010 9:14 PM
> > To: firstname.lastname@example.org
> > Subject: [CR] Frame stiffness NOW Frames Getting Soft and 753
> > I rode my 1983 Raleigh SBDU 753 Pro Super yesterday so been
> > all of this with interest.I'm 6'2", 165 lbs, ride a 62-63 cm
> > ideally, am an aggressive rider and for me, 753 is all one could
> > wish for, at least as crafted by the SBDU; it's uber light,
> > and in a Raleigh frame has superb ride with no extremes in
> > But you sure couldn't call 753 "stiff". You want stiff (and I
> > frankly do) in this size... ride a Masi 3v, absolutely sex on two
> > wheels even if it's a good 1 1/2 lbs heavier. Just completely
> > different rides and the weight difference is imperceptable, the
> > eats hills and accerates out of a curve like nothing else. So
> > is good but 753 is sublime and that's good, too. I find myself
> > preferring 753, Vitus 971 and Columbus SL/SLX to Reynolds 531
> > Imperial gauge standard DB which can seen "dead" if that's the
> > right word in comparison; I am not sure why but it just feels
> > way sometimes.
> > Peter Kohler
> > Washington DC USA