When was the last time you had an alignment done? Also, I know this is a totally different vehicle but I had an 09 canyon that needed an alignment. One shop did it and I thought it was pretty good. I took it to a different shop not long after when the shake in the wheel persisted and they pointed out the tires had horrible weather cracking, something the first shop completely missed. That and they pointed out all kinds of alignment issues that the first shop missed. Something very similar could easily happen with a tire balance. Especially one that was "supposedly" balanced.