As soon as I drove the car after the new bush was fitted I noticed a difference. The vibration must have been almost subliminal, so much so that I wasn't aware of it, but 'post bush', VeeKay is back to the way she should be. The bush also corrected a slight snatch in the transmission as well, which had been present when taking up drive from a trailing throttle.
Cheers mate You're one of the best.