Nice demo, I would like to hear your views on this.
I see that the edges are not rounded on this cabb on the demo.
I.e. there is a sharp corner between the bevel and the flat-top.
Don't you think it would be better to round of that as during wearing it may wear faster then the rest of the cabb? I'd like to think so.

(depends on what kind of jewellery/setting etc, I know just thinking out loud)
Click on the thumbnail for a larger view, below is how I like to do my flat-top cabbs.
I do the approx same sequence just round of that bevel somewhat.

Just a thought.