Hi Les, thanks for the info and the follow up work you did on this. It will be very useful I am sure. I came up with the method mainly because I wanted to set up a master dail in the head for V3 so that I could control both eyes. That was easy enough to do making an injection pose to load the ERC lines needed in V3 head. I then found where it might be good to be able to deactivate the ERC (for the master eye dials I had added) if cross talk became an issue in some scene. Thus I tried and found it worked to zero the deltaAddDelta line. It was also the easier line to edit via a pose file. Making a figure wide pose file to deactive the deltaAddDelta channels as you point out should be easy, since these need only be zeroed. To reactivate them. Hmm, I am wondering if maybe just loading the original Cr2 as a stripped down pose file as being the easiest method, since those default settings are already there anyhow. Depending on how much time you are willing to spend making the pose, the more unneeded stuff you can strip out, will determine the amount of work needed to make the pose. Ideally, you would want to keep only those deltaAddDelta lines, and get rid of the rest but that is not absolutely necessary to get the file that clean. And, since you are going to have to make the deactivate pose file anyhow, with those lines in it, why not start by making the "reactive" pose file first and keeping the default settings as you strip down the cr2. Then zero out the lines to make the "deactive" pose file from it. It would be a bit of work, but I generally make most my pose files that way anyhow - starting with a cr2 and stripping it down using Cr2Builder and/or Morphmanger to cull most the stuff not needed fairly quickly, and then tyding up the rest in Edit pad Lite. I would also like to say that I would be totally clueless about such niffty things as this, if it had not been for people like you, Ockham, and so many others who have spent so much of their own time sharing these little findings with others. Big thanks.