Hi, I have a Record 050 combination plane. I was looking at the Lee Valley book last night for sharpening supplies for the profiled blades. I seen that they offer slip stones and also wooden profile ones from 1/8" - 3/4" that you stick PSA sandpaper to. They also have a runner in the bottom so I could dado them to a board. What I'm looking for is if anyone has used either one and any pros or cons. I appreciate any advice. Thanks, Bill