One of you guys who have been around needs to start a post that will grow with the Rohrbaugh. It would record such things as when they changed from Deer Park, when "R" was added to the s#, when various changes occured. I know that the s# is vague but there are things you guys know that you can pass on for the future. I've found bits and pieces but we need a central reference place to which we can go for info like Park City furnishes for the P7M8, etal.