The Tyros4's VH doesn't have the issue.

http://music-tyros.com/tyros4/features/vocalharmony/index.html

I'm like Beaky...it's not hard to work around it, and, it's worth it, in opinion, as the instrument (the S910, in my case) has so many other awesome features, styles and voices...plus, again in the S910's case, it is inexpensive enough to allow the purchase of two instruments, giving the advantage of a back-up instrument, very important if you have a busy schedule.

It is good to see David has been fortunate to discover his old PA-800 was what he really needed all along, and that John Smies' software has given it a boost.

Ian