John; Don't forget to account for the humidity when making your calc's. G-10 is moderately hygroscopic. Tom, K5RC/7 -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: owner-towertalk@contesting.com Search: http://www.contesting.com/km9p/search