Having worked on trucks of all sizes, and done tires of all sizes.. I can say no.. the balance medium spreads out in the lighter area.. I cant tell you why, But I can say for certain it works.. I have used sand as well as BB size steel balls.. Drop them in the tire before it goes on the rim and off they go.
Most places dont have balancers big enough to handle tractor Trailer tires, so this is the next best thing. A lot of trucking companies also like to use recaps, often of dubious quality.. the recap may look fantastic, but the tread or just the density of the rubber is off... so, in balancing with standard weights, it will be out of balance in a couple thousand miles as the high spot/hard spot wears off..
Excellent idea.. I will have to look into that if I ever get this extractor....