Sounds like your "aligner" fluffed the job. Have him recheck.
I just had the greatest repair experience last weekend after the FMCA rally in St. Paul. I waited my turn as one of the presenters, Dick Lornston of Precision Frame and Alignment in Elk River, MN, repaired 12 coaches with varikous handling and tire wear problems. He is relentless in tracking down defects of more than 3 years duration, with many previous failed attempts by mechanics and factory.
So if your guy can't fix it, drive westward.
5th year fulltiming; now in '05 Alpine Coach