Mark, I believe that if you hang in there with the PA3X, in the end you will be glad. All the controls make playing live very easy, and the vocal processor/harmonizer is fantastic.
As we discussed, any current, or even not so current, arranger will get the job done, but the bottom line is "make it easy for yourself!"
In the past I have played for the same audience several nights in a row, and switched back and forth between arrangers on different nights. Nobody ever asked if I had changed something. Of course this is after everything was set up, tweaked and optimized for me.
DonM