Hey all,
Final results.
Apparently the cause was two-fold.
The first was uneven tire wear which was most likely brought on by wheel and or neck bearings needing to be replaced.
The second was that, according to the mechanic, the tube inside the tire was folded over causing the balancing beads to bunch up in the wrong place, a lesson learned for the mech.
Both problems were there before I bought the bike, so it's something i will pay better attention to in the future.
So there you have it... I rode it today and tested out the mph range where the wobble was and the bike rode smooth...
Thanks again to all....