A potential problem with leaving two (or I've seen three suggested) layers of electrical tape on for thw whole honing process is that you will wind up with a sharp razor, but one with a changed bevel angle or a double bevel. Thereafter if you (or someone else unsuspecting) want to hone it you either have to tape it or establish the correct bevel angle. A variation is to use the tape to get a bevel and an edge going and then remove the tape and refine the bevel to the correct 15 degrees before finishing.

Something to think about when giving advice.

Don J.