The more you drive the deeper the gouges get. The metal droop screws are coming into contact with an aluminum chassis. Not only will it destroy your chassis over time, it make it truly impossible to keep your droop adjusted properly.
Team FastEddy has spent several months developing and testing bump stops of different methods, sizes and materials. We now have available The Team FastEddy Drupe Screw Bump Stops.
They are not a bolt on product.
You must drill and tap your chassis. Its a simple M5 thread and takes about 5 min to do all 4.