High Speed vibration, can't find what's causing it.

It’s just not a popular way of doing this job.
Popular or not, balance beads work. You never have to worry about balance weights falling off or having to use gorilla tape to keep them on. The tire re-balances itself every run... You wouldn't use them in a Top Fuel car but for every day vehicles and some drag cars they are great. I have them in my slicks and the street tires for the car. It's all personal preference but they are an option to using weights that like to fall off...