There does seem to be verity of different racks for sale. Some sit lower than others,this helps with rear visibility.
We now have a Heart of England Morgans Low Line rack for long distance touring when we tend not to need the side screen stowage. Makes a huge difference to rear visibility. The rack with side screen stowage now sits in the garage and I swap them over if needed. The low line rack has the mounting system for Givi Panniers installed on it.
