Dynamic balancing...

... I also found Dyna Beads. At first I assumed this was rubbish, but the more I looked at it the more sense it made. Anybody tried it?

I mentioned looking at these in the Mounting your own tires thread, and found some video clips that demonstrate the principle:
This clip shows them using the actual beads that you would put in your tires, but in a bottle, demonstrating the principle.
This clip shows the principle in a similar system but using a ring attached - intended for truck tires, but it shows then principle of it working rather nicely.

Anybody heard of this, tried it, know of somebody that has?

(-8

This idea came out, as near as I can remember in the late 50's, (yes 1950's) and it worked some of the time but generally was a cluster fuck that I would never use on a motorcycle or even my 1984 Dodge Van. The best balance is, as always the one where you place the weights in a permanant location, presumably the right location to balance the tire and rim.
Jim Beam will make this all clear and if not you need to drink more.