@csmgolf, you guessed it. Have used the Signature SEs 3 years, tried various Herbie's and other things, no luck to date. Note the thread size on these is M12. Gaia I come with 12M adapters but they are a bit of overkill for 106lb towers. Just read reviews saying Gaias are difficult to install, tighten, level, so believe I will hold off pulling the trigger until hearing your experience. I will be away for the winter anyhow, so time not of the essence. Your expectation re vibration is probably correct. Hard to tell how much feedback I am getting without first trying these (or Townshend platforms whose cost I can't justify with no serious known problem to be solved). Appreciate your commentary on this subject.