I have a 70ft Rohn tower with a 15 ft mast. On the mast at +8ft above
the tower head is a 9 element 2 meter beam, at +12 ft is a 5 element 20
meter beam (big) and at the top of the mast (+15 ft) is a discone. I
have three sets of guys on this setup but they are not able to be set
out as far from the base of the tower as is specified by Rohn because
of the terrain. One set is only 18ft from the base of the tower.

We are in a very wind environment here in the Pacific NW. On the top of
Scott Hill we often get wind storms in the winter with gusts to
70knots. This setup shelled out a Yaesu G-1000SDX rotor in one winter.
This caused a free wheeling antenna that wound the coax around the
tower like a vine on a tree.

Bottom line, the tower has been up for 5 years and there is no sign of
trouble. This was used tower by the way. It had been installed in it's
former application for 20 years.