While we are on the subject. With respect to the standard (No seperation kit) arrangement, I note that a major difference between the G5400 and G5500 is the bracket between the AZ and EL rotators. In the G5400 it is an "L" bracket, and in the G5500 it is extended to a sort of "J" or "U" bracket, adding two bolts to the AZ rotator casing. The G5400 has bosses for the additional bolts. Has anyone made this modification? Are the G5500 brackets available?