Why the sudden popularity of 12 inch arms

No sweat Pryso. The original question, which seems to be so quickly forgotten in some of these forums was why the sudden popularity. Technology and mat'ls are why the disadvantages can more easily be eliminated. I can hear the geometry change with most "short" arms. The technology now exists and is affordable to hang the cart way out there like never before. SME thinks enough of the improvement to build a 20/ series table just for this length arm(s) When was the last time SME latched on to a fad or a marketing scheme? Z.

Dear Zieman: +++++ " Raul, Please read my response again. Slowly. I changed one component. The only proper way to evaluate a new addition. " +++++

IMHO I think that you missed what a tonearm involve in sound reproduction performance, you can read my post again or better yet read what Pryso posted about whom understand perfectly the subject:

+++++ " You may have changed only one component but you changed multiple parameters. Not only degrees of tracing error but also mass, stiffness, bearing design and quality, resonant frequency, and wire (considerations just off the top of my head) " +++++, build material, tonearm shape, counterweight position, etc, etc. and Z it does not matters with which cartridge.

Regards and enjoy the music.
Raul.

Raul, I see you have some vintage gear. Things have changed in the last 25 years. ALOT! Please re-read the original question. SLOWLY. You admit in your first response that you can't answer the question. THANK YOU. Please allow folks who perhaps can, the chance. Changing the topic does not help the member who posted the question. Z.

Dear Z: The only ones that can ( for sure ) answer the thread question are the 12" tonearm manufacturers.

" Changing the topic...", please let Downunder that he decide about.

" Vintage gear ", well vintage and today audio items, if you read slowly you can see what MC cartridges I own and which tonearms and you can read several today ( including your MC cartridge and a the SME IV ) gear.
I have to tell you that some of those " vintage " gear ( cartridges/tonearms ) outperform your today analog gear, you could try it!!!

Regards and enjoy the music.
Raul.

I think the discussions and debate's that are ongoing is great.

My original point of the post was really to see if any folks had changed from a 9 inch arm to a 12 inch arm and what were the results in your system.

Clearly Zieman has seen positive results in changing to a 12 inch arm and that mirror's RG's review in hifi+.

Me I have had two 12 inch arms for a few years now so I can appreciate the better tracking at the end of a record compared to my 9inch naim ARO arm on my LP12.