I will second the comments on Sharpmaker. I used to have a Lansky and gave it away once I got a Sharpmaker and I'll never go back. Not that there was anything wrong with the Lansky... it's just that the Shaprmaker is a lot better. I will also second the comments about using a magic marker. I use a magic marker any time I am reprofiling, whether with the at home with Sharpmaker or in the field with a hand stone.
_________________________
Learn to improvise everything.