Camera stability on a motorbike
I'm aware that a helmet (or chest) mount would improve camera shake immensely, but I much prefer the bike-mounted perspective - without bits of the bike showing. I see other bike-mounted Bandit video on YouTube that has less shake than mine, and wonder how they do it. Bike suspension is obviously a factor. My Triumph Sprint (a Sports-Tourer) is a reasonably heavy bike, but is still fairly firm on the road. Certainly I've found that riding with a pillion really helps to smooth out those bumps for the camera - not enough for my liking, though. I've wondered if flex in the pitch mount is adding to the vibration, and have tried wedging bits of rubber against the inside angle of the mount. This may help some, but the results of my testing have not been conclusive.
Does anyone else have similar issues or can offer advice on getting smoother footage from a motorbike without resorting to a helmet mount?