I prefer the edge tools that can have a
variable angle for
beveling. People who do the features like boxes and rails may want more of a bevel on the bottom side of the edge.
Diamond stones used after the bevel has been achieved will increase the top speed of the snowboard.
A slight rust probably isn't to much of an issue unless precision edging and max speed are very high priorities. What is very
important is the edges are not rusted where they are connected to the deck. This most likely will compromise the strength of the board to hold the edge in.
http://www.zardoznotwax.com/ claims to have a rust inhibitor.
