Hi all, took out my Shure TPA 10 Tonearm with original headshell, fitted with a vintage Shure M3D cart today, and plan to install it on my 301 in my quest to take it back in time, back to the 1950s and use it for playing my older records. The Tonearm came with my 301 but was configured for 9 inch specs. Plan to use it with 12 inch specs. Would anyone have some guidelines for me to follow to mount the tonearm and adjust the headshell angle? Thanks in advance.