I am posting this blind because my company's office system does not allow me to see the posted Dynabeads video.
I put new shoes on both my Magna and the Valk Interstate earlier this year and had the Dyna Beads installed. I've got about 3.5k miles now on the Magna tires and 3k on the Valk tires and both bikes run very smooth at highway speeds.
One nice feature of the Dynabeads is that they keep the tire balanced throughout it's life verses wheel weights which are OK in the beginning but don't have the ability to compensate for wear over the life of the tire. My shop only charged $3 per tire for the Dynabeads. About 2 ounces on the Magna and about 2.5 ounces of beads on the Valk because of the larger tire volumn.
So far I'm pleased.
