In my experience some tires have internal problems that can be balanced but not cured. You can replace all the running gear on your vehicle at the tire dealers recommendation but still not solve the problem. They are never going to admit the tires are the problem...
....but if the previous tires had good wear patterns and rode well and then the new ones brought with them problems I would just ditch them and get a new set. Even if they won't give you the warranty (of course eating the cost of 305s would hurt more than the passanger car tires I've had to give up on). But eventually the tires will damage the running gear and then the tire dealer will be right (it is the truck's fault).
IMHO the Equal stuff looks like a giant load of $hit.
It only works when on the road but not on any kind of balancer.

It is only three ounces of polymer but it can figure out exactly how to balance the tire all on it's own. And if you get a puncture somehow you will need to add a new bag to balance the tire (the stuff can deal with missing lugs and flat spots caused by emergency braking but not a repair plug)

. Of course their site does support my contention that some tires come from the factory out-of-whack but then advocates one of the stupidest concepts I have ever heard of to fix the problem.
Questions for macneill that might help us all learn something -
Did you get new wheels with the tires?
How much lead did each tire get to balance? This is a good indication of how close to balanced the tires started out as.
Did they remove the Equal from the tire before adding lead? If not how could they balance the tire with all the confused Equal doing God-only-knows while on the spin balancer.
And if they did how did they do it?
Have you tried a shop with the
Hunter GSP9700 ? I don't have personal experiance but have heard good things and their website makes reasonable sounding claims. I noticed that dealers in my area are using them, maybe they are sending back defective tires instead of spending money chasing down non-existent running gear problems.
For others out there -
How much weight to balance your tire ? Please include size, brand, model of tire and wheel type. I think that less weight needed means a better built tire (or least a better QCed tire). What do you guys think?
From the makers of EQUAL (suppliers to only the top tire pros).
New Look Tire Paint. You would think they would know enough to take "marketing" out of the company name. Can you think of any company with a really great product that has "marketing" in their company name ?