I am runnig 235/85 BFG MT. Less than 3K miles on these, used 4oz each tire. I certainly agree with the observation of balance loss at 60mph or above. I thought at one point my U-joints were failing me, but no, it was the Equal. I am wondering if more was added, say 2 ozs/tire, that the addition would reduce this in&out of balance issue at highway speeds.
Anyways, on the positive side, most of my road-time is under 50mph (back and forth to work) and the tires ride like glass. I also like the idea of not having to worry about re-balancing these tires in the future, thus longer tread-wear (so they claim).
Jury is out for now if it goes or stays...
BTW, not a single tire dealer or auto shop that m&b's tires whom I have called, will support the use of Equal, besides loss of balancing revenue and warranty revenues, they can not articulate why, but simply hate it. Hmmm, why would I ask in the first place and expect an inteligent answer?
Other negatives: puncture a tire, harsh bead breaks, slow air-downs, dry air-ups, all will require new Equal or affect the Equal performance.
Other positives: mud-in-rim no problem, rebalancing eliminated, longer tread wear, no wieghts, etc... So, is the answers added to the confusion?