I'm at the point in my honing where I'm pretty good (nowhere near honemeister level), but I'm starting to experiment with different edges off different hones - you know, the fun part . I've given a lot of thought to the Zowada Double Bevel and I've got a question.

Disregarding whether or not it works well (I don't often hear TZ owners complaining), whether or not it is the best way to finish an edge, or whether or not you personally choose to use it...
Why is the secondary bevel created by adding two layers of tape after the initial bevel is set and sharpened? I would think that the best compromise between sharpness and edge longevity would come by sharpening the razor up to 8000 grit using one layer of tape, and then only adding one more layer of tape for the final light strokes on the finishing hone.

Any thoughts, guys?