I really like your implementation of a HOTS Lucio. Using Volume as a resource is neat and now that I've read it, I can't imagine it working differently. Crossfading is done well, and you've captured the spectrum of his abilities sufficiently. The talents, particularly the Crossfade: Remix at level 20, are nicely designed. My major waffle is the subject of Wallriding. Exactly what is a solid piece of terrain? If the upper and lower boundaries of an area are a dense copse of trees, is he...

This guide is organized well, but I don't find it very authoritative. Talent choices work into an overarching playstyle, but the playstyle you seem to be recommending is merely, "Hang around, use your abilities as you see fit, and don't die." You don't stress any particular detail (maximizing Psi Storm, locking down lanes, being a dive assassin's pocket support, etc) in playstyle and that is reflected in what I see to be very disconnected talent recommendations. I have no idea...