On my '77 KZ650C1, I replaced Michelin Macadam tires with Pirelli Sport Demons. The Macadams were fairly old at that point and had about 6,700 miles on them and they were the source of a high speed (90+ mph) wobble despite being properly mounted and balanced and having very much tread left. Below 90 mph the wobble was not noticeable, and even though I only hit 90+ occasionally the thought of the wobble waiting there for me was unnerving. I replaced my bike's wheel bearings, steering stem bearings, and swingarm bushings in trying to eliminate the wobble; I already had new top quality shocks. I'm glad I replaced those items, and doing so reduced (masked) the severity of the wobble a bit, but those items obviously were not the source of the problem as it persisted. After replacing the Michelins with the Pirellis the wobble was totally eliminated. I have taken the bike up to an indicated 120mph and it is completely stable. This problem was 11 years ago and no trace of the wobble has ever returned.
I'm not saying that your wobble is a problem with your tires; it may or may not be. I'm just letting you know what I experienced on my bike. One question - did the wobble start gradually over time with the current tires on the bike or did it start when the tires were first mounted? I ask because the wobble on my bike gradually started over time. I guess that was as the tires wore some or aged even though they looked like they were in very good condition. Ed