Bought a set and they are the dogs bollocks. No permanent scaffolding and they make you pack simple. See Wappings Pickford them on the RR. 28 ltr plus I use a Kriega 10ltr rear rack bag for shoes etc so they are perfect.
Checked out the review of Andy Man Cam (cheers roamer) and must say they look good + putting your clothes in the waterproof bag 'inside the panniers' stops them looking like a couple off balloons your dragging behind in bad weather.
Going to phone Sportsbikeshop today to see if I can look at them before I make the decision.