Without doubt the Chinese cartridge sounds better, but although its stylus is marked LP and 78 talk on the internet tends to suggest it's not true. Putting the stylus under the microscope gave the following picture:
One is definitely a sapphire, the other could be a diamond, but they are both the same diameter! Comparing with a BSR ST17 you can see the difference:
Luckily the ST17 will directly fit the Chinese cartridge as it seems to be a copy of an SC11! But mounting in the 'standard' Chinese mounting clip. For this project a clip is not required.
To be continued