I'm re-working my tower, and was wondering if there is any RF benefit to replacing the top guys with Phillystran. The current guys are 1/4" EHS. The antennas are a 4el SteppIR mounted at the tower top, and a 6M7JVV 8' over that. The tower top is a Rohn flat top with guy 'ears' right at the top. It's replacing a tapered top section. 73, Mike NF4L