I've been experimenting with graphite on my strops. My question is about conditioning the strop. For a clean strop, I simply rub my hand across the leather like it's recommended on this site in a number of places. For a strop with graphite, however, you end up with a black mess no matter how well you clean the strop. So the question is how does one condition a strop that's been treated with graphite? Thoughts?