Centramatic Wheel Balancers

Update on 19.5 vision and Dynatrac PD 890 245s. After 2000 miles I still have bad vibration after reaching 50 mph. Going to take it to Firestone here in Syracuse, N.Y. tomorrow morning. Since I have lifetime alignment and balancing will let them take a shot at it.:? Hope for the best. I am looking at some commercial truck places too here in central new York area. I stopped at a truck shop near Ohio on way up 2 weeks ago and was told they do not have any weights that small and do not work on 19.5s tires. Trying to find places that do the truing process if need be too. I will say there is a big improvement in sway and handling than my stock wheels and Nitto Durras 285/75r/17s.