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The reason I said to not practice on that one is that those big ole choppers are few and far in between when in any sort of descent shape, which yours appears to be. There are plenty of other razors...

Please don't do a dang thing with it if you don't know how, especially any sort of regrinding. Please just send it to someone who is well versed (a pro) on honing to correct any deficiencies, then...