Three years ago I bought Roy Cross's favourite all time bike from him, his 49 C Rapide with it's twin disc brakes, the first thing I thought I would do is remove them, after riding it once I realised they were100% perfect so no way could any sane person remove them if they want to ride it.
last Summer when I was offered 6 Vincent's from anther famous Vincent expert I had not option but sold it to a Friend in Tasmania who rides and retains the wonderful Discs which actually have 'Vincent' engraved on the calipers.
Five of the 6 Vincent's as is often the case turned out to be non matching and re stamped poor examples which I sold on, this left me without a Vincent for a while, In January I got a superb example from eBay ! private owner (ex IOM racer) .
I fitted new linings 2 weeks ago and they were poor and spongy, I was given good advice from this forum, however I was concerned and went to the expert brake people in Bedfordshire who said bring the wheel so we can match ? etc
I pointed out that I and most classic owners were more interested in softer better linings that may wear out faster but as we dont do thousands of miles usually in a year that did not matter.
When I collected them they had changed them for a fibre/cloth type looking liner that even has bit's of brass bedded in !
Yesterday was the first time I tried them and although they are still spongy and not bedded in they seem far far better.
If they do not bed in and are not a good improvement over the originals I intend to buy the new 8" drums.
The brake people who are very polite and helpful are Auto Industrial friction services. Arlesey Bedfordshire.
photo below of these totally different extra grip linings
Kerry