> Don't repair the symptom without the illness. > > I agree totally with Eric. Lotsa wind load on the tower, no? wind load from inside or outside? -- **Please remember to trim posts, as requested in the Terms of Service** To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: <http://listserv.icors.org/archives/bullamanka-pinheads.html>