I am pretty sure Ben would recomend what he sells, based on his answer to this question in the wranglerstar video of his tour of Edge Pro.
As far as Shapton Glass vs the Boride and polishing stones from Edge Pro I personally didn't like the Shaptons when I tried them, I borrowed Edge Pro's full set. They don't absorb water so you have to keep adding it while sharpening even small knives, they cut very slowly, cost much more, and the finished polish between the Shapton 35k? and the Edge Pro 4k is identical. The one plus is I think the Shapton Glass will last forever, but so will the Edge Pro polishing stones.