K3ACZ , No problems with running an A-99 . Iv'e used them for many years , until we had a tree taken down close by it would bounce off the branches on a windy day . I never had a problem getting out . Iv'e chatted world wide on it during the last good cycle . When it needs replacing I'm going to buy an Imax only because for a little more I personally just want to upgrade . A-99's are a great antenna it's been through a few hurricanes and Nor Easter's here on the East Coast . Mine is 48' to the tip and I'm on a hill almost 800' above sea level .