Vibration

To continue with my particular brand of heresy I will comment on what I have done to smooth out my 850 and make it beautifully smooth. My isolastics are adjusted properly. I fitted (about 60,000 miles ago) a Jim Comstock/CNW head steady. This is a great design. When I first fitted it, I could notice the difference in handling immediatelty. I felt the vibes a little more, but the difference in handling made it worthwhile. The design allows almost no sideways movement but allows the engine to move up and down. I wanted less vibration, so I though that because of this lack of sideweays movement, I could pobably get away with a larger gap on the isolastics. Normally, you can only go so far before you get that "hinged in the middle" feeling. I don't even know what the gap is, I just loosened it off, front and rear. The difference is quite noticeable. My Norton is now smooth throughout the rev range with no bad effects on handling. The theory is good with continued great handling so, it works for me. I don't have bits falling off. I came back from a country race meeting a while back in perfect comfort at 120 to 125kmh. I was impressed.

Sounds good, I have a DT headsteady, I have never managed to completely quell the vibes, there are various points in the rev range where something like the left footpeg buzzes, adjusting the iso's just moves the various vibes up or down the revs. However sitting at 70 to 80ish is not a problem, the speedo gives a few options as to what speed you are doing.
To join you on the heresy front, whenever I am on the Ducati 900SS bevel I am reminded of what smooth actually feels like!

I would be curious to know what your iso gaps really are. Wider is smoother but how wide can you go?
Also notice that vibes at speed are connected to how much throttle and load you have.
And my 750 is smoother than the 850 for sure. Perhaps the one piece isos I put in have rubber which is too hard.