Beware of the "probability" function... let me explain... This feature only has application within the SS itself, which can be a nicety for the "real feel" of a drummer who takes to ghost notes during play...
However, this feature disappears as soon as that data is moved out of the SS in any way... essentially "capturing" a random performance (same as if you recorded it live). The performance is a newly generated "version" and may not mirror the last you played in the SS either.
So take that functionality with a grain of salt... in reality, once a performance is captured (even live), it is what it is, and what it will be remembered as. It can be a useful tool, but its "boundaries" are limited, and I typically end up editing after export (from the SS) anyway. I would not leave that enabled for a "master bounce."