if you are referring to the "brick" compound I tried the Green and white compound. Difficult to apply on the raw hide of cow hide. I use the rough portion.Resorted to teh red jewellers rouge/ OK with me.. better than nothing. Don't like the spray diamond compound.
These bricks are meant for the buffer wheel solution/method. I also use the tripoli ( red compound on my knife handles and also the white compound for polishing steels.
rgds
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