Sport05 I take it u have a gen 4? Did the third alignment cure the vibration? I'm thinking mine is related to driveline: cvs, u joints? I'm running my stock control arms.
I used to have a 4th gen. Have an 02 SR5 now. Yes the vibration is much less now. Just a touch in the steering wheel. Shop also said I had one tire that had quit of a bit of run out. Moved it to the rear.