Rgordonpf, having owned many tts and arms, including the Schroeder and now a Shindo 12 derived from the old Ortofon 12 spring loaded arm, I have to say that ease of setting up an arm is not an indicator of it sound. I loved the Schroeder I had with my Loricraft/Garrard 501 tt. I even used it with a Decca Jubilee. It was very critical what the separation space was between the magnets, but when right it song.
Please listen first and worry about setup afterwards. I now know the benefits of a 12" arm and would buy a Schroeder in a flash were it possible to mount it on my Shindo/Garrard tt. Perhaps some day I will have this capability. I must say that the sound I get with all Shindo is extraordinary.