Matt, those are no more misleading than telling people that all stopper installations leak. This "stopper" type install has been around forever, and admittedly can be a source of trouble. This doesn't necessarily mean it's a complete junk design, it just suggests you need to pay attention to what you're doing! With gas, and the number of issues apparent among rookies getting used to gas, you could say the same thing about every fuel line connection?

Myself, I find somebody that's selling materials to those having trouble with the stopper type installs, maybe somewhat less than objective? I fully support the fact you are supplying an option, but condemning the stopper type installs completely might be a bit over the top..... -Al