I'm finding the release on the brass insruments are too short. I have a passage where I would like to have an instrunt just decresando out. Even if I set the mod wheel to 0, the intrument just cuts off. I've tried this on the horns and trombones.
Have you tried adjusting the "length" control on the Kontakt player? I don't remember what CC that controls offhand, but by adjusting that to a larger value, you'll get a slower release.
cc21 is the controller.