Alrighty - I suppose I have to accept that someone, somewhere, sometime?ended up wearing blacktop for a hat as a result of the 'death fork' syndrome...
I've just taken a look at the Lambert / Viscount CR pages again and see from the pix there that my example differs materially from the one illustrated.
http://www.classicrendezvous.com/
On my fork the column is swaged?all the way through?the crown (and indeed is a solid billet at the base of the column). The only reinforcement seems to consist of a hollow steel pin driven through the brake drilling itself.
This is probably a rather more sound engineering principle than the arrangement shown, and almost certainly accounts for my continued longevity!
As I remember my 24" 'Aerospace' came to me new in 1977 and looked almost exactly like this:-
http://www.classicrendezvous.com/
except for the Tilist gearing I mentioned earlier, and mine was silver with blue contrasts and a lot 'taller' of course.
1977 was probably well after a few of the early spec' forks had snapped asunder, but Yamaha presumably later decided the basic solid alloy fork concept was flawed, and a marketing disaster in any event - and simply erred on the side of caution.
Have to say that I never got wind of any recall though...
Ian Briggs
LUTON, Bedfordshire, UK.