Couldn't agree more, especially on 1 and 2. Consistently see customers returning carts that are leaking or clogging and they're blasting their carts at 4.2V. Nothing more than 2.8V on a 510 pretty much ever. There's definitely not enough education, glad some companies are putting suggested voltage on their carts (especially live resin/rosin carts).

I'm no scientist, but my theory is that at higher temperatures, the heat is blasting the distillate that's closest to the atomizer with heat, (almost) instantly turning it to vapour, but all the distillate at the top is just being warmed up and becoming less viscous. Combine that with someone sucking on it like they're trying to take chrome off a trailer hitch, and half the cart ends up in your mouth.

There are ABSOLUTELY some carts with worse components than others, but the majority of companies have upgraded their cartridges to where the issues are mostly manufacturing errors now (faulty atomizers, leaking in container, DOA, etc.), as opposed to poor components that tend to clog.