Suggestion: Could you normalize all instruments so that they have approximately the same volume when you pre-hear them in Komplete Kontrol and when you load them? Sometimes it's crazy loading instruments that have a totally different gain.
I therefore would like you to either bring all of the instruments in all of the VSTis to the same loudness level or to add a second gain controller within Komplete Kontrol that gets adjusted once a instrument loads so that the instrument gets turned louder or quieter there but will always accomplish the same loudness level as the other instruments.
I also would like you to optimize all of the Ogg files that have the pre-hear samples. It was good if they all would become normalized to one loudness level too so that not all of the played sound for pre-hearing have a different loudness level / gain.