Despite being a 'Dumpling' by birth, I ain't getting involved!
Just to say Chatsworth is the 40 SAE and does fine in Duke singles, roller big ends. Hardcastle, is just that for the oil pump when cold, but required for tired Indian plain big ends to keep them 'quiet'!
However, I should like to point out, that I am not insinuating that the 'Stalwarts' big end requires 'Hardcastle' because its tired!
I think I need to STOP!
Bye bye, Bill