I assume you used Warp Stabilizer. There are additional controls for rolling shutter repair. Mess with them.
If you used some other method then AE has a separate rolling shutter repair effect. Try that. You can also use the rolling shutter repair before you use Warp Stabilizer if you pre-compose (short shots) or render a production format intermediate before you apply WS.
You can't reverse the distortion completely, since the underlying motion vector analysis is never exposed. I would imagine that you can cook up some workflow using third-party tools like RevisionFX Twixtor Custom Vectors with a differential analysis of the before and after to generate some unwarping matrix, but even then it would not necessarily represent a full compensation. Other than that you could try what Rick already suggested and throw other distortion effects in the pot as well. Some basic Mesh Warp might do wonders, though you may need to mask out stuff first.
thanks i have made some significant improvements by using the warp VFK with rolling shutter correction
then i actually replaced the background with a freeze frame from the same footage, and masked out the people
it has improved a lot it but its not perfect
as a matter of interest, do you guys think the rolling shutter problem is enhanced on wide angle lenses? im using an 11mm on a crop frame dslr , and it strikes me as though this problem could be made more difficult due to this
It's not as much the lens that creates the rolling shutter as the use of a DSLR to begin with. Your best hope for lessening the rolling shutter inherent to DSLR footage would be to record at a higher framerate.