I have this setup. I also bought the *********s.com products prolam injector. I had a twinjector and sold it. Mine was only 3oz, you need the 6oz version as the other is too short to reach the bottom of the pots. I found mine always required me to fiddle with it to get it aligned and shoot smooth. The prolam has a machined top cap that seems to keep the unit synchronized. I also really like the handle for holding the blending block. The rack is nice too. It needs the heater though. It melts the plastic and keeps the injectors from gumming up. I ended up building the heater portion myself. I think I got better pieces and the relay is separate from the controller.

Depending on how much plastic you work with, you may or may not love it. I am used forking with small batches of Pyrex. Working out of the pots is really nice. Plastic stays hot and you keep shooting. My biggest adjustment was getting used to working with so much more plastic. I did also get the stir systems to keep the plastic moving and not scorching.