Ok....So I'm officially on the look out for a mission arm for my 401 , (alternatively I've spotted an Audio Technica 1503 Mk II which might be worth modding )....Would a Cardas rewire be advisable? What about a suitable cartridge recommendation? This is all rather new ground to me, the high/low mass/ compliance is something I really need to read up on!! Thanks to all who have and are helping out- much appreciated! Any who might have a spare tonearm of the type mentioned above for sale please drop me a pm ;-)