Just installed a FuzeBlock FZ1. Very straightforward installation. Everything works fine - switched and unswitched.
However, I do need to check the power draw on my air pump. I know it blows a 7.5 amp fuse because I first tested it by plugging it into the Powerlet outlet I have installed on Panel A. Oops. After that, I only plugged it into my rear Powerlet sockets which used to have a 15 amp fuse. Now, because of the limitations of the FZ1, there is a 10 amp fuse on that line. Of course, if it blows the fuse it is now really accessible for poping in a new one. It's almost easier to plug it in and see what happens than it is to look up the specs!