Hi all — I realize this is a 4.5 year old thread but wanted to offer my experience trying to fit an EAT Jo No 8 to an SME V. I believe the dimensions for the No 5 and No 8 are close if not the same. The No 8 did not fit flush for me. So, I had to return the cartridge.
Hopefully this helps others as there seems to be limited, but conflicting, information out there relative to this cartridge and tonearm.