Before I put up my Hazer with a GM tower, I was also asking a lot of questions.
I have a GM 40 footer, and only have one set of guys at the top, and it works
fine. I was also asking about a second set of guys on another tower, and
someone told me what they were using for the second set of guys and they
claimed it worked great. I'll try to explain it. They made a frame to loosely
fit around the tower. This frame had provisions to attach a second set of
guys. They attached three 20 foot cables (one at each corner of the Hazer) to
the bottom of the Hazer. The lower end of the cables connected to the
fabricated frame. HOpe you can picture this. When the Hazer was elevated all
the way, the fabricated frame would be located 20 feet below the Hazer, and
it's guys could be connected to the guy anchors. When the Hazer was lowered,
the frame would just slide down the tower. This way you would have a set of
guys at the 50 ft level and a set at the 30 ft level when the Hazer was cranked
all the way up. Sounded good to me.
Good luck with your project.
73, Tom K2UOP in WV