TT, 12" Tonearm. Who tried and ended up preferring 12" arm?

I tried "12 and still love it, almost on any plinth the bigger gap between a turntable drive and a tonearm tower looks better :)) First "12 inch in my arsenal was Thomas Schick, second is Reed 3p , and the last purchase was Victor UA-7082. Personally (if i could) i would like to have all my arms in 12 inch version, but this is just aesthetics. 

Practically a '9 inch or 10'5 are great too, but a short arms sometimes too close to the platter and almost impossible to mount on several turtables like Technics SP-10, SP-20 series. 

Some popular long versions are just too expensive like FR66 for example. 

A '10.5 inch like EPA-100 mkII is probably ideal in this situation, glad to have one. 

  

Elliot, I have a 9" arm and a 14" arm. It all depends on the cartridge. I put stiff cartridges like the Koetsu and the Air Tight in the long arm. I put softer cartridges like the Lyra, Windfeld Ti and Clearaudio in the 9" arm.
I can't say one sounds better than the other. They sound different probably mostly due to the cartridges. The differences are surprisingly subtle. I can say that I have never heard a Koetsu do bass or sound punchier than it does in the Kuzma 4 point 14. I have a Rosewood Signature Platinum because it weights a lot less than one of the stone models which would push the effective mass over the edge. The Koetsu RSP and 14" Kuzma are a match made in heaven. The Windfeld Ti in the 4 point 9" will track anything you throw at it. It beats all the others in tracking tests. If I were to use just one arm I would get an SME V 12. It is a very light 12" arm and with the addition of head shell weights would be able to accommodate any modern cartridge. I like the 4 point 9 a lot but the reason I have it is that the SOTA will only take 9 to 10" arms. The Tri Planar arms are also excellent.   

keeping things more affordable, I am looking at

George Merril's Gem Dandy PolyTable Super 12 with a Jelco 12" arm,  3 Jelco arm choices, 750L, 850L, 950L.  new: $3,000 to $3,700. plus tax and shipping.

http://www.hifigem.com/PolyTableSUPER12.html

No dust cover, I would have to make something (which I could/would do).
.....................

Also considering an old JVC JL-B44 which came with a factory 12" arm, integral dust cover (important for me). As-Is or Refurb. $600 to $1,000.

not many around,

https://www.youtube.com/watch?v=Ys6eWvwfLaQ

two eBay, from Japan

https://www.ebay.com/itm/264512255947?ViewItem=&item=264512255947

https://www.ebay.com/itm/Victor-JL-B44-Direct-Drive-Turntable/153409634015?hash=item23b7ed3edf:g:XzsAAOSwh0NchHAp

Just found this JVC alignment kit. It indicates JL-B44 tonearm effective length is 245mm, 9-5/8". Several places call it a 12" tonearm???

https://www.ebay.com/itm/JVC-JL-B41-B44-B55-B77-QL-5-7-A7-8-10-Y3F-Y5F-Y7-Tonearm-Alignment-Protractor/112624526630?hash=item1a38f1e526:g:LpMAAOSwjShdfjQd