Having just gone through my DSP submittal and process recently, we included it under the bonded area/POC description, and process description. Once you are permitted and they have given you permission to operate, you are welcome to move things around and change basic equipment...just leave everything as is as listed on paper till you are "all clear." I haven't amended any registration items yet, so I can't help you beyond that. The TTB field office number(s) are a great resource and the folks are actually responsive and informative, at least the West Coast office is. http://www.ttb.gov/about/locations.shtml