I invested in the "beads".
In the process of polishing my rims, I removed my weights, knowing I would use the "beads".
Took about a half hour to install due to the right angle valve stem. oh ya, that's each tire.
If your changing tires, then they can be added beforehand, bag and all(the bag disintegrates).
My Report:
They(the beads) are noticeable at low speeds(0-30 mph).
You can feel'em moving around as you accelerate.
Once you're at speed, the buzzing from the handlebars(closest explanation of the feeling) disappears.
Every time you change speed on the quick side. I can feel'em moving around, rebalancing.
Coming out of a turn(and sometimes into a turn)I can feel a front tire buzz. Like the beads are moving to the sidewalls trying to rebalance.
The rear tire, I feel nothing. Looks good. No weird wear.
The front tire also shows no odd ball wear.
My recommendation is not to invest in the "beads".
If I were to do it over.
I'd have the tires spin(or dynamically) balanced.
I'm dealing with it now because 90% my driving is local, plus I do not want to remove the tires, have the beads removed and rebalanced(dynamically).
NOW. If you drive a Semi Trailer. They generally use 3lbs of "beads or more(how much lead can you put on a semi rim?)
They work great for that purpose(steady speeds,300lb tires).