I gave up on "solving" the cable dilemma long ago. In my system, with 6 outdoor speakers, an outdoor subwoofer, 11 indoor speakers, 2 subwoofers, 7 external amplifiers, 7 components (all virtually with a dedicated ethernet cable), etc it's simply impossible to get it all beautiful (not that it ever does, anyway), and more crucially, to me anyway, pointless.
I've seen people use dozens of zip ties and others means only to think: ok, now what happens when you need to get at them, break the ties and re fasten them? Seems a bit goofy to me. BUT, I DO understand your need to have them out of sight, that's a completely different issue. I just built my new rack with that very idea in mind.
In my case I constructed the case to house my amps (which are fan cooled) on the bottom with no visibility to the rear...the front and sides are very well ventilated. That's where 90% of the cabling lies. Basically though, ditto for the second shelf. By the time you reach the third shelf there's just an HDMI and power cord going up to the Kuro so that's easily hid. All else is an abominable aesthetic nightmare behind the cabinet. Can I get to cables if need be? Sure, but I'm not going to spend hours negotiating 150 cables and tying them off as it's ALL completely invisible, in-room.
So my recommendation: much easier to simply hide a necessary evil that you do not want to see, as even the guys with the most painstakingly arranged cabling still don't have them anywhere in sight. Go figure. Use your velcro ties to get things up (and sometimes, down, lol) and out of sight if you have to.
I'm a neat/organization freak, so it's a bit odd that it doesn't bother me...but then again, I don't organize my sock drawer, either. I guess perhaps I'm more of a practical freak.