Has anyone used Dyna Beads in their tyres?

I came across them by chance when looking for something else and they seem to as controversial as Nitrogen (also promoted on the DB website), does anyone have any experience with them?

Tire Balancing Products

 

How They Work tire balance beads for trucks, cars, trailers, not equal, dyna beads or counerbalance Checkered Flag Mobile Tires Flagstaff, AZ 928-255-5540

There's something about this that doesn't make sense.
There's a flat spot where the tyre's in contact with the road and I think the dynamics of that would continuously disrupt the bead pattern in a more positive way than the 'heavy part goes up' hypothesis.
I've never seen this technique used in applications like gas turbine disks.
Spin dryers self balance in a completely different way.
Won't swear to it but I do sense the proximity of rattlesnake and mangle.

 

SWMBO is able to overcome that function regularly.

 

Yes the eccentric load capability has its limits!
My father used to work on the RR turbine design team. He specialised in blades and their attachment to the disk. His last engine was the Olympus. In the early days when test equipment was rudimentary they would spin up the disk to destruction using a small air turbine.
The disk was hung under this by a knitting needle!!
It would take hours to get to the 20,000 rpm at which it would burst but as it spun up it dynamically balanced itself - called a 'whirling bearing'.
We lived quite near the factory and the test was usually done at the weekend. There was no doubt when the disk burst - there was a small earthquake. Dad could look at his watch and predict the rpm!
Same principle for spin dryers except without, hopefully, the burst!

 

Exploding spin dryers I can go with.

I've not seen these beads before though.

I would have thought that accelerating and braking would be an issue though.

With the beads being free, within a body on which forces are being applied.

+ what happens if you go over a bump or pothole? Won't they shoot off in all directions?

 

Yep, all valid points, Richard.
I'd think 75% Limousin cow pooh + 25% cement would overcome hose problems.
Any takers?