Mick, that "rogue" bass drum is one specific kick sample that is stuck on a volume of 127. When you first set up Biab to use the Hyper Canvass Biab should give you a window asking if you want the bass drum remapped to a different patch number for the kick. Say yes and it's fixed because all it's doing is using a different kick sample that does not have that flaw in it.
Ok I just opened Biab. Go to Options>Preferences>Drum Kit. See the first thing in the upper left? It says Kick-Pop and Kick-Jazz. Mine says 35. That's the kick patch number. Change it by one either 34 or 36 can't remember now, and problem solved. Some time ago Peter put in that little tweak to do it for you the first time you select the HC in the DXi window.

Bob


Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.