Dear Phred,
That's a different thing. That's about having or not having that -2 seconds countdown pause added in between tracks.
This request is about trimming the actual silences in the tracks themselves, as you can choose in the preferences > player settings.
MusicBee can do this currently when playing, but not when burning. And of course, when I burn something I would want to burn it like I hear it when I play it. :)
Cheers.