I have recently started using a Lansky style system, the system I bought came with 3 stones and a stone guide to keep the angle right, so far I have used it one one knife and it's worked pretty good, I started going on another but due to the fact the edge was pretty messed up it's taking me a while to cut a new one.

I think it will do a nice job and the system I bought was 45CND, I have seen them posted as low as 30CND but I would have had to order online and it probably would have cost me more in the long run.

Jeff