I have used Dyna Beads in all 6 coach tires which are Michelin's (front) Bridgestone's (rear) size 295/80R/22.5 and also in my four cargo trailer tires which have dual torsion axles. Those are 16 inch standard truck tires.
I have put over 32,000 miles on the combo rig since installation of the Dyna Beads. There hasn't been one problem, vibration or rough ride EVER.
Dyna Beads will NOT work on autos or SUV's tires because of the dynamics of the tires/wheels normally used in their applications. They will also NOT work on trailer axles that are fixed with no torsion or independent suspensions.
Here is the web site and FAQ's where all of your questions will be answered.
Tire Balancing Products
Everyone can choose whatever system works for them. However, people who call themselves "professionals" should keep their "professional opinions" to themselves and let people decide for themselves. If it doesn't work for them so be it.
I trust my own judgement once I have tried something. It either works for me or it doesn't. I will let people know what HAS worked for me or what has NOT. And then let them make up their own minds as to what they should do.
Just my opinions.
Dr4Film ----- Richard