Hi, I copied Mel Bartels' design for a wire spider on his trilateral dob and I don't have any problems with excess vibrations. See: http://www.bbastrodesigns.com/tm.html & http://www.iceinspace.com.au/index.php?id=63,324,0,0,1,0 Spreading out your attachment points in both axes should solve the problem. Tim Nott