Sorry the delay.
I already installed all the options that Ketron supplied with upgrade 4.0b. I tried all the possibilities and I like none.
IMO the option 3.0c still is the best option for the polyphony problem.
Recently I bought a 9000Pro and is very good to play without polyphony and latency problems.
I´m almost changing my nickname!!!
Like Luka, I still hope Ketron will do something about it.

Armando