Newbie and a wedge

[Nickster]

Hi all, my first question.
I have to say thank you to this site as I have obtained some great information regarding honing, restoration and shaving techniques, none of which I am very good at but I have at least had a couple of reasonable shaves from razors that I honed, a great feeling.
I'd like some advice if possible on honing a Joseph Rodgers wedge, (I hope I have attached a picture of the toe end). This thing is a brute! Chop down trees I would think). But I may be getting a bit ahead of myself with regards to ability in honing, (please tell me if I am). The test shave I had with the razor was pretty good but hard to tell with a doggy technique. It did take about half an inch off my sideburn without batting an eyelid.
My question is in regards to taping the spine. Reading (as always for me after the fact) some articles on honing wedges suggest that tape should be used on a wedge. I even downloaded a spreadsheet and I am sorry I don't have the link now, that allows the measurements of the blade and spine to be entered and the correct number of layers of tape is suggested. My trouble is my wedge doesn't seem to fall within the measurements of the spreadsheet. The blade measures 15.40mm wide (to the edge of the honing mark nearest the blade) and 5.50mm wide on the spine.
Should I tape this razor??
The spreadsheet seemed to indicate that I wouldn't get a correct edge bevel even without tape, which is how I honed it.
Any suggestions much appreciated.