Is there anywhere on the web where I can compare build specs of Tristao, Tri-Ex and US Tower type crank-ups? I have the US Tower Web Site...but unsure of the others. Interested in the 70, 72 and 89 ft models. Thanks... Rich Rich N7TR ex KI3V, N3AMK, WB3JOV www.n7tr.com Telnet: dxc.n7tr.com N7TR DXCluster