In truth, Harold was responsible for the Comp XE products, too. He was an engineer for Comp when he came up with the "idea". In the late '70s, metalurgy and spring technology wasn't "up to the task" of the assymetric lobes and "fast" ramps. Comp shelved the project, so Harold took his patents and started UD (so the "story" goes, anyway). Once the patents ran "out", Comp dusted off their notes and went back after it. I've never met Harold, but have followed his work over the years. My understanding is he's now creating grinds for high-end racers through General Kinetics. Truly one of today's "super gurus".
There's no factory grind that can perform like the modern aftermarket grinds in similar parametric ranges. After using them for more than 10 years now, they too, are "tried and true".