Please experiment with your old and kitchen knives first. Re profiling requires the removal off allot of metal and you should start with your coarse hone. (120 ) .
The EdgePro will do a fine job, but like everything it takes a little time to learn.
Warning. Put masking tape on the table and your blade to avoid any scratches.
Take it slow, use a felt tip to keep an eye on progress and let the hone do the work. A light touch is what you are aiming for.
Time. Well to put a brand new back bevel on a blade could take, depending on angle chosen, anywhere from 1/2 to an hour. Some people think this is long, but it should be enjoyable so what's the hurry<g>
Time will depend on angle chosen and how thick the metal is just behind the edge.