The newer SME arms have a fairly heavy base section which could set the Linn suspension off balance. I don't know for sure because I haven't tried it. Some of the heavier arms have had trouble with Linns. The SME's are very good arms though.
SME V/309 Tonearms With LP12 or VPI MKIII
I have now acquired an SME 309 and SME V tonearm, both in excellent condition. I Also have a VPI 19 MKIII, but want to also try an LP12 Valhalla...so, does anyone have any experience with using an later model SME tonearm on a LP12? I only see info on Linn arms and Naim Aro's.....never SME arms. Thanks for your help in advance