Geronimo,
eventually your strokes should be come very light, hardly any downward pressure from you. usually that is what many people don' t do - if that' s not the case with you, i ' m not sure what to tell you. I use DMT stones, haven' t tried their stone. another good thing to finish with is a leather strop but even without that you should be able to cut paper. You have to hold the blade at an angle to the paper you are cutting. sometimes a head might take me longer than the one before but as long as i keep the strokes very very light and keep at it, it' ll get there in a few minutes. well those are just my thoughts. if you like the design you might want to try snuffers or wensel woodsmans, some people think they are easier to sharpen.

Eric