Thank you! The photos don’t show it, but I currently have it set up this way:
All three of my synths and my MPC Live are going into each of the stereo channels on the mixer, and the mixer output is going into my Octatrack. One of the outputs of my Octatrack is going into the Analog Heat, and the other is going into the input of my MPC Live. The MPC Live is sending clock to all of my gear except my Blofeld, which is being controlled by my Octatrack. Having it set up this way allows for me to sample all of my synths and be able to send samples between both samplers. I don’t necessarily need a mixer to do this, but the Blofeld and Model:Cycles lack inputs, so it makes it easier.