"I use the gimbal arm with the Sound-Smith Mimic Star and it is a perfect match, resonance of 10 Hz.. I have used the Zephyr on it and it was perfect also but the resonance was 12 Hz, still not an issue. Have not used your two choices."
I understand the Zephyr was designed with the Unipivot arm in mind. I understand you found it to work well on the gimballed arm as well. I did not enjoy the Unipivot on my Scout and Scoutmaster - no offense, they just weren't for me. I do like the gimballed arm on the Companion, however, very much. Any idea what the resonance would be for the Boheme? I guess I need to call SS Monday.