jshperdue wrote:I think I'm just gonna bite the bullet and get the larger super fine stone. If the pocket stone would ever become available I would buy a couple. The 4" size is just soo handy.
Maybe you don't have many other options.
You can however rub simple blackboard chalk on your fine stone and that may help a little.
I think you'll find you can't change the grit size of any abrasive stone irrespective of what you rub it with or on. Undoubtedly you can glaze and blunt a stone if you try hard enough so that it doesn't cut as it should but that's counterproductive because a blunt stone will only push a burr.
I tried flattening an Arkansas Stone (Novaculite) on a diamond plate with minimal pressure and running water and all I can tell you with certainty is, it didn't do the diamond plate any favours and it isn't something I'd try again.