I have a single mono lead vocal track. Because of the six inserts slots limit, I find myself needing more effects than I have insert slots. When I create a mono group track and route the one vocal track to it, I find that the mono group track is several DB lower in volume than the original track. However, if I create a stereo group track, and route the one mono lead vocal to it, the two are identical.
Why would mono and stereo group show different volume level? Should I only use Stereo group tracks for this purpose?