UPS delivered my order of Gates Power Grip hose clamps yesterday and I installed a couple of them to see how they worked. These clamps are easy to install- crush the cardboard form and slip the clamp off, slide it over the tube/hose joint and use a heat gun to shrink it in place.
I'm impressed by how tight these clamps get. One advantage over worm drive or T-bolt clamps is that you won't slice off any skin with these. Nice for tight places where your hands need to work.