12 inch Graham Phantom

Glai, I took a look longer at your system, and see that you've heard some Shindo, now to Allnic. Its an interesting progression.

This is so far - heads and away - the most sophisticated and educational thread in the analog department in 2010.
But to add to the pure technical aspect of the question: yes, longer is better - obviously. In terms of geometry and in terms of - well .. - feeling. Anything less than 10" is not really serious and the real fun starts with 12".

Dertonarm,

Longer isn't always better. Some have complained that it hurts. Some like it shorter, some like it thicker, some thinner, and some like it just the way it is. For each there is an optimum length, thickness. Basically we are looking for that perfect synergy. Without it you need to move on.

I forget what I am talking about, women or cartridges?

Dgad, it certainly all is a matter of perspective ......
Length never hurts - if applied with expertise and skill.
Those poor souls who prefer short and thin will still have a wide selection.
Given the fact that the 10" are rare and the 12" are even scare.
Those lucky few who have experienced the advantage of the long versions applied with skill, will never again settle for less -neither skill nor length.
And they KNOW why.
And - yes, I recall! - we were talking tonearms.....

The relaxed handling with a long one and its improved contact area to the side walls can create a different reproduction of tones.