Having got the drilled version & had a good look at the clamped on photo's on facebook, I would love a hinged arrangement whether clamped or drilled.
Rack could hinge forward allowing boot opening. Much cleaner operation than this pull pins and take rack off affair..
Absolutely right. It's so obvious. But I say clamps, no drilling.
Simpler to fit and to use. That's what good design is about.