Been experimenting with hollow ground blades on a swivel knife and so far I really like them. Far less cutting resistance when compared to a regular blade. Also easy enough to grind you own if you have a small wheel attachment and want to experiment or you can get the Barry King version which is well known for quality. For Keeping the edge well honed I made a leather strap for a 2" drum sander attachment for my cordless drill. I also have these available if you prefer purchasing and saving some time. Barry King Tools - Swivel Knife Blades Powered Strop - Run it slow My version in case I did not like it the blade could be saved Trying a new burnishing technique