Nice to see some Manufacturers in here trying to come to a consensus. Maybe you could work together to create and promote a standard that at least your companies could use and promote?
Specific equipment and/or graphs that must be linked to the batteries website showing the testing method did indeed follow the method you all decided upon.
That would increase the faith in at least the companies that choose to follow the methodology. Plus, give us a 1 up on the airplane guys whom have had a much longer time to try to establish a consistent baseline.