@lewm I am open minded on this subject.
The Thread has been a prompt, and as result, I have the opportunity coming to encounter a version of Underhung Geometry.
I have no intention on commenting on Underhung or 9" vs 12" Wands until the upcoming experiences are complete. As all demonstration will be using the same fundamental Tonearm Design on the same TT, the the same Brand / Model Cart' with almost identical usage hours.
This type of demonstration is not too common and will be the first time I have been able to have a comparison that has set up conditions so closely matched.