This lets you mount a DyzeXtruder GT in place of the EZStruder. The DyzeXtruder is nice because it has a locking release lever, so you don't have to hold the lever while you insert or remove filament. It also has dual pinch wheels (like the Bondtech) and is fully constrained for printing flexibles. Print two of these. One goes on top, one goes on bottom.
Looks like the newest version of the Chimera does NOT have those flats machined on the heat break. Should be ok though - thread in the heat break loosely to the correct location, then tighten the nozzle against the heat break. You should be able to hold the heartbreak with your fingers to prevent rotation, if you need to use a tool for the Heat Break use a soft pair of pliers as to not scar the Stainless Steel. We will reach out to E3D and see if they can update instructions.
Stock retract setting was 7mm changed it to 2.5mm and it seems to work much better now. Was also able to remove the E3D hotend, clean the dust that had accumulated on the cooling fins, checked to make sure the nozzle was tight against the heat break.
All these together seemed to solve the problem. Thanks for the help,