hi Garth,
as I said above, it's a mistake to get too hung up on the material......it's the implementation that counts. the question becomes; can the designer minimize the challenge of any material and optimize it's attributes...and then get closest to the ideal.
people see wood and they think 'color' 'warmth' or 'rounded'. they assume wood will be affected by humidity or changes in temperature.
no different than metal.....'cold' 'rings' or 'undamped'.
it's how you 'engineer' the actual implementation that counts. if the material has a 'sound' that gets in the way of ultimate transfer of information then how well can that be fixed?
which is why you need to hear whatever arm you buy first.
when I was first exposed to the Durand tonearms I had 5 different tonearms (and three tt's) in my system, including the linear tracking Rockport arm on the Rockport Sirius III. I had a Triplanner and a Schroeder Ref SQ. and 2 Reed 2P's. over time I found I preferred the Durand to the other very very fine tonearms. but that was me and my system.
my personal sonic perspective is for accuracy and naturalness. I'm not looking for tone at the expense of detail or reality. I want it all. maybe look at my system which if you click on my name, and then hit 'visit homepage' you can see. (I cannot post a link).