docjowe wrote:the distance from diamond to arm base was somewhat different from the 229 cm quoted as effective arm lenghth.
thats why I wonder if the SPU headshell are longer than my shell.
when you tried that, did you have room in front of the cartridge to move it forward? how much farther forward must it move?
the headshell could also be quite tall and a spacer could help so the cartridge looks out more from the bottom of the headshell. so this adapter plate could take care of a few problems at once.
send me a few fotos of the inside of the headshell to my www. , one close up and one wider with a measure next to it.