I also don't understand how after creating an additional mapping for the brush kit snare, Why a kitpeice wasn't created at the same time, with a different snare in the same environment utilising the same mapping, but with a different vibe to the jazz snare. They created a extra bass drum for the Jazz sticks kit for some reason.
Yet we a second pandeiro with the Session kit, when there is a wealth of missing latin percussion from their range.