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Yes, it would have. The tape changes the angle and without it you would have to remove more steel on the bevel to get to fresh steel.

If you are going to continue to work with this razor, I would highly recommend you using a layer of tape on the spine. No since wearing it out while you are learning...I almost said "undue wear".

I'm not sure if you know what you are even honing with, so I will start there. After looking at my Shapton GS's here is what I use, so you can get an idea in the "micron" sizing":
1K=14.7 micron...