VPI Classic

I recently purchased a VPI Classic and a Benz Micro Gullwing SLR. I am having a problem with the tonearm. When I play a record the tonearm wobbles back and forth. I had my dealer look at it, and they are not sure what is causing this problem. We looked at two other VPI's and they looked rock solid while playing compared to mine. I have tried calling VPI numerous times to see what they have to say regarding this issue, but have not been able to get through to them on the phone.

I have tried adjusting VTF from 1.9 to 2.1 with no change to the wobble. I have tried adjusting the Azimuth numerous time, and it still wobbles. Does anyone else have this issue? Is this normal? This is my first unipivot, so I am not sure if this is typical.
VPI answers phone calls between 10 and 4 on Tuesday, Wednesday and Thursday. It sounds like a cartridge problem.
I own the Classic and it does not exhibit the described behavior.
Thank you for all the advice. The table seems to be running smoothly, and I can not detect any vibration. The table is dead level, and this is the second cartridge I have tried. I was using a Benz glider for about 4 days, and it wobbled just like the Gullwing SLR. I have also tried using two different counter weights with no luck. Could it be a problem with the unipivot bearing? My dealer and I both tried calling VPI, but I have not been able to get through to them. I just get a busy signal. Im sure my dealer will be able to get through to them next week. Is anyone using a Benz Micro cartridge with their VPI? Thanks again for your help.
Take off the arm tube and turn it over and check to make sure there isn't anything up inside the cylinder that would hinder the very sharp pivot point to seat correctly.

Also make sure that the very sharp pivot point is just that VERY sharp. If it got bumped or hit or dropped somehow, it would have damaged the point and made it blunt.