On the net I've seen recommended sharpenning angles from
30 degrees , the bevel is 2x as long as the thickness of the blade, then blunt the very edge by 1/64th or so for durability
Just a thought on the gravel in the stones, Dean. I have the same issue and instead of trying to get gravel out of the grass in the spring I found prevention to be easier. Maybe twice per winter when we get a thaw and the gravel becomes aparent on the melting snow I use a flat shovel to shave it from the snow and toss it back on the berm. It isn't perfect but has reduced my spring gravel chores by 95%.
Thanks to You and beecrofter, both replies were helpful. Dean
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