Dear @harpo75 : The 205CMK4 is a superb quality level performer ( I owned. ) its compliance at 10hz ( not 100hz as japanese specified. ) is around 19cu that made it a border high compliance cartridge.
In those times I owned around 20 tonearms ( mainly japanese ) 3 SAEC in between and were not good enough for the Technics top MM/MC cartridges even with out the beautiful made and way resonant ceramic headshell.
Btw, Dr. Sa Win said in his operation manual, well in reality you can read as an Alert: please don't mount the cartridge in knife bearing tonearms and the SAEC is double knife. I owned the Sao Win LOMC cartridge, very good too but not in the SAEC.
Regards and enjoy the MUSIC NOT DISTOTIONS,
R.