I've not balanced a bike wheel in decades, never had a problem. I just mounted new tires on a 13 Ninja 300 and left the stock weights, forget that! I pulled the weights and far better but it'll now headshake on decel and vibrates like crazy over 75 MPH. It was the smoothest bike I've had in near ten years before the tire swap, now my hands are going numb in 15 minutes of riding.
I just ordered the dyna beads, this bike is so smooth the effects, or lack thereof should be obvious immediately. I'll report back when they get here.