Regarding half-pedaling bugs and VI Labs. As I mentioned, I discovered one such bug since the very beginning and reported it to them. Their response is not exactly what I expected. To be honest, Garritan CFX is better in how it responds to re-pedaling combined with half-pedaling.
Here's how to reproduce it:
play a short (staccato) note in the bass. Shortly after you release it, press the sustain pedal in order to catch it (re-pedaling). Then slowly release the pedal, going gradually through the half-pedaled region.
Result: there's a sudden boost in the volume.
Expected: the note should only decay, even faster, instead of increasing volume.
To me it appears that on half-pedaling they don't restart the sample from the same point as re-pedaling but earlier. They just need to make consistent maps between both. Better yet, no need to have separate notion of re-pedaling. Re-pedaling is the same functionality as half-pedaling where the pedal is fully pressed.
I reported it to VI Labs and they said they couldn't reproduce it and requested files, so I also demoed it:
modern-d-half-pedal-bug.mp3
Here's their response:
This behavior is related to the repedal and half-pedal features working simultaneously,
When half pedal is used, the repedal gets a bit more sensitive to allow note-catching to go a bit longer. In a full playing context, this should all blend together more, but an individual note like this may stick out. On a real piano, you should be able to 'catch' whatever the damper does not fully clear, and some of the note sustain will come back.
The repedal and half pedal features of Modern D is very similar to the ones in Ravenscroft 275 and Modern U, and it seems to work for most cases. We'll look into this though and see if an adjustment can be made, if it the case it will be included in the next update. In the meantime you can also experiment with lowering the Release Xfade value (click the up/down arrow button next to Release Volume to switch).
Their response doesn't make much sense but I hope they can indeed fix it. And experimenting with Xfade is of no help either.
This is not the end of the world for me but I was expecting more from VI Labs to be frank.