I'm about 160-170, so I doubt rider weight has anything to do with it. I'm leaning towards something to do with the front tire/wheel or steering stem. I have yet to check any of these, though I did retorque the front axle nut w/o any changes. Thanks for your input, though. seems like there is no rhyme or reason why some wobble and some don't.
have not had time to work on the bike recently... playing Honda Civic mechanic getting the car ready for sale.