I dropped my knife and broke the tip. I'd like to do the repair myself, but I have some questions. Is it best to remove steel from the spine rather than cutting edge. Is a 500 grit stone course enough for the job? If so, when removing steel do I hold the blade perpindicular to the stone with the cutting edge facing straight up? Any other recommendations? I have posted a photo link with my proposed cutting line. Does this look ok? Thanks!