I just started freehand sharpening, and since I don't want to abuse our kitchen set just yet, I was wondering what you guys recommend for "practice" knives? I know that a lot of the cheaper knives have some pretty bad (soft) steel, but if all I'm concerned about at this point is learning the technique and building muscle memory, do I need to get some decent knives, or will ANY knives with different blade shapes work? My plan was just to sharpen them, dull them on a brick or file, and start over since I would like to get a lot of practice building my technique before I move up to some decent knives. I know the key is just going to be practice, practice, practice, but if you guys have any other suggestions, or practice routines, please chime in. Thanks in advance!