Ok I know that everytime lately I've been posting is cuz of this stupid aftermarket wheel vibration situation but it still has not been resolved for me...It happens on the highway going above 70mph...

To resolve the vibration so far I've:
1 regular balance all 4 wheels
1 Hunter Roadforce balance -- identified a warped wheel, sent back had new one check out perfectly
1 front end alignment

I have 245/40/18 on 18x8.5 fronts and 275/40/18 on 18x9.5 rears

Anyway, the only thing left would be bad tires? like a bad belt or something? I dunno I'm like so confused. I KNOW i KNOW its not the car, as the other 17" Stock rims run smoothly...so i'm not sure what's up with that...any last suggesstions?

Anyone have any trouble with SUMITOMO HTRZ II's? I looked for some buyer feedback on tirerack.com but nothing about vibrating...just road noise complaints....