4 feet of mast between the top of the meter and the highest support?? that means you have four feet to install the three required supports on the wall for the mast. That seems a little odd as a rule, I could see some installs where you had no choice, but imagine if you had 10 feet above the meter until you hit the soffit, all your brackets are grouped in the lower 4 feet. I would Checdouble check that rule again.
