Ian,
I'am still sorting this all out. I copied all of my T4 styles and put them in the USER area of the S950. It will take a while for me to understand how it will all fit together.

By the way, I copied several of the T4 voices onto the S950 and set them up as a OTS in a style but they WILL NOT PLAY! So, is it not possible to take some of the T4 voices and play them on the S950. All this said, the style, even with the missing voice in all parts of the style, still sounds good enough for gigs. I can't believe I'am going to say this -- but it rather reminds me of my little Korg MicroArranger with those T4 styles.

By the way, I noticed the volumn difference too - but didn't make any adjustments. One more thing, the T4 is tweaked to the hilt for my gigs. The S950 is right out of the box.
Deane