The spigoted helical draw-socket arrangement use on the great majority of detachable headshell pick up arms was developed by Ortofon, but is erroneously referred to as the SME design, is due to the adoption of the arrangement by SME (ARA designed the arm for his own use with Ortofon cartridges, which at that time were only available fitted into either the type A or type G headshells), and owing to the subsequent popularity of the arms this misconception continued.
What better ways are there? Is the Lenco headshell coupling any better, or do you think those arms employing a detachable arm wand, where the coupling is located near the bearings are significantly better?