Well, lets see: 2.16 dB loss => 60.8% power delivered to load 1.40 dB loss => 72.4% power delivered to load assuming 1500 watts in, the difference is 174 watts. Look at it this way, if you use the lower loss feedline, your 1326 watt SB-220 looks the same as a 1500 watt Acom 2000 with the higher loss feed.... -Tony, K1KP