Remember, sustain can also have an effect on the polyphony useage.

Also the polyphony algorythems are different on different instruments. My Kurzweil K2600 only has 64 but, the way it is implememnted...you don't hear many complaints about running out. I never have.

128 seems like a lt, but in the right combinations you could defineltly run out.
You can prbably come up with a way to run out on any instrument. Heavy sequencing is one way.

Normal use on a T4, IMHO, I would not worry about it.

Lee S.