Unfortunately, I needed to re-install the OEM Audi wheels this morning due to not being able to get rid of the excessive vibrating and shaking. Both immediately went away now that my OEM Audi wheels are back on the car.
I really liked the look of the Elbrus wheels but after weeks of trying to make them work, I just couldn't deal with the issues any longer as 80% of my driving is on the highway the vibration and shaking was driving me nuts.

I will say that TireRack.com tried to help fix things and were responsive. I have purchased tires from them in the past and have always been pleased with their service. I have no doubts that this will be the case again with my return/credit.

 

Yup get them road forced or some places call it ride matching. There is an arm with sensors that applies pressure on you tire as it spins as to simulate your assembly rolling across the road. When your car comes from the factory the wheel and tire assembly will be road forced. So changing out tires or wheels with a normal balance may not take you back to that factory ride.
Unfortunately no circle is perfect, but road forcing will try to make it as perfect as possible. It will actually require moving the position of the tire on the wheel itself, totally separate from balancing.

But if you say your OE wheels returned it back to normal then I would make sure they are applying the weights on the new wheel correctly. Not all wheels use the same balancing methods.

 

they have been rebalanced?