the dovo black and red are abrasive pastes not conditioner
I think neetsfoot adds draw faster then the Dovo conditioner, but that i dont know

By ridges do you mean the ridges left on the backside of the strop resulting from the pressing prosess? BTW if that is it thats not the side you use

And here is some more info on that strop
http://straightrazorpalace.com/strop...n-strop-2.html