Ok I have a technical question for you. As many of you know I have both the Sub 37 and the new Model D. Had planned on selling the Sub but have come to miss the Darkness and muffled sound of the Sub 37. I was feeling torn until I ran the Model D through the filter section of the Sub 37 and my mind has been blown. It just sounds amazing and along with imparting that dark spooky vibe, I have all of the filter modulation options available to me now along with the Model D oscillators. Best of both worlds. The only thing that could make this better is if the filter section of the Sub 37 were available via modular from Moog

or more likely if they ever produce a rack mount edition of the Sub 37.
Here is what I want to be able to do quickly in a live setting.
1- be able to play the Model D through the Sub 37 filter section for added darkness and spookiness.
2- be able to switch quickly to only playing through the Model d for a brighter sound or also if possible, but less important, only play through the sub 37.
3- If playing only one or the other synth at a time I would like to be able to produce drones with the synth not being used.
I am sure this is easy to do but being new I have no idea how.
A friend recommended the Moog Moogerfooger cp-251 but I am hoping there is something cheaper and more simple to use....