That's the killer feature right there. Zip ties are a one-way street, you always gotta cut em and start over when you swap gear. Velcro lets you just peel one cable off the bundle and reroute it in five seconds flat. Even better, you can group cables that actually move together, like the power cord and the HDMI from the same box, and leave the others separate. Once I got a cheap label maker and tagged each strip, wall management became a five minute job instead of a Saturday project.

Crumbled like sand after two days" man that hit home. I had a similar thing with a pallet of type N I kept in my buddy's barn, thought the roof was solid but there was a leak right by the wall. We mixed up a batch for a little retaining wall and it looked fine going in, then a week later it was basically play sand with some rocks in it. Ended up having to rent a mini excavator to pull the whole thing out, total pain. What got me was the bags on top were fine, only the bottom two layers were toast. Now I just buy what I need per job, even if it costs a bit more, and I store the open stuff in a sealed tub inside my truck cab. Also learned to check the mfg date stamped on the bag, old stock from the yard can be just as sketchy.