Agree! Good point about these "come apart" bands, too... Once adjusted, you never have to adjust again, which is another advantage of them. I, too, settled on AL80s, as they are ubiquitous and standard at 7.25" diameter. Phork, it sounds like something's not adjusted right on your bands... If the cams are too difficult to close, then adjust the velcro a little looser and the problem should be solved... Permanently.
...Which leads me to another advantage of them that I forgot to list in my last post: Once they're adjusted permanently, they no longer need to be wet prior to attaching the tank.
Alternatively, if a diver tries to attach their BCD "standing up" as they're accustomed to, I can only imagine that it'd be difficult to do with these bands, regardless of how tight or loose the velcro is.
The solution is in the technique... Like much of scuba. And if you use the right technique, most will see that these "come apart" bands are superior to standard "don't come apart" bands.