Please post a photo when you've installed the Keel Eazy.
Like a few others here with the same issue, I place a carpet on my driveway during loading to protect the stern keel. I'm pretty good at estimating how far from my bumper to place it after all the times I've loaded my kayaks. When I get to the launch, if it is all hard surface, I use a floor mat from the van. Otherwise, I unload my kayak on a grassy surface whenever possible. Most of the launches I use are not exclusively hard surface.
Olive Hobie Revo 13
Hidden Oak Native Ultimate 12
Author: The Simple Joys of Kayak Fishing (Tips and Tales From an Old Guy in His Plastic Boat)
Available on Amazon.com