I have used the TI white paste, the Green and the Red pastes on hanging strops, but mainly as the final touch in the honing process before going to the leather. The results have been hit and miss. Sometimes they have made a razor shave smoother and sometimes sent me back to the hone. The same applies for when I have tried to touch up on all three. I really like the Green and Diamond pastes on the flat bed leather hone if needed for the final touch when honing.
Lynn