Couldn't miss that one.
I had a '72 450 Desmo ( the silver one)in the mid 70's. Couldn't fit on it these days, as they are quite tiny. Revved well, light, handled, stopped well with the twin leader, crap electrics (all of them), vibrated like a bastard, broke the odd engine mounting bolt, was fun but not for me, for the long term. A mate's B33 BSA would keep with it. Showed me very early on that accepted knowledge was not necessarily the truth. Moved on with no regrets.
the joke was that the only thing that ducati did when they took a 250 single bigger was to add more vibration