Used two shots in my 37" MT/R's. I've got a slight hop around 65-70.
Remember. You can't really overkill the amount. If your tires are cupped or worn odd they will need more to balance out. If they are great condition AT's...I doubt you'd need a full shot glass. Whatever the tire doesn't require to balance just becomes inert.
BB's work. I've been told they don't. I have personally used them now (recommended by WhiteTrash) and can attest to them working.
