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it doesn't take much to change the bevel from tape to no tape even on 4000 hone. sharpie marker is your friend there.

the problem you're having currently is that you don't have a reference what...

unfortunately going down to 4000 grit and below you've probably done far more damage than necessary. i think at this point you're probably right to send it for a rehone, but next time try a touch-up...