Hello, I have used the other pastes and I found them to be not very satisfactory The red, green and black are just so much less effective than the diamond , boron carbide and chrome oxide.

Regarding the Goop. I have used it a number of times to clean and condition old strops and it works very well. The main components are glycerin and lanoilin. I would suggest buying either Tony's strop conditioner or the conditioners from
Classicshaving.com

Hope this helps,