I think this is much more about Sibelius than VSL, but I am posting it here just in case anyone else has the same issues.....
I am using Sib 8.2 under El Capitan 10.11.3 and trying (unsuccessfully) to do a simple snare drum roll.
My composition includes a snare drum part of single beats and the occasional roll, but rolls do not seem to be possible in Sib 8.2 ? The VSL snare drum roll samples work a treat in my Digital Performer DAW, but not in Sibelius.
When I attach my single stave drum score to the VSL VI through playback, it will only pick up the single beats, C4, and not the rolls C#4 ?
So I tried using the on board Sibelius 7 sound set and the same thing happens. Yes I can get a buzz roll with the Z marking on the note, but it sounds hideously mechanistic, great for EDM but not the classical piece I am working on ?