One tiny piece of grit under the strap will scratch. A mixture of grit, dust and water will make an abrasive paste. The paint will suffer, so don't bother.
However, there is a way...........
Stick a neoprene strap on both bonnets using double sided tape. Make it slightly wider than the strap. Then the strap will abrade the neoprene, which can be peeled off and replaced as required.
BUT - the paint might fade around the neoprene.........
Use high density neoprene for this fix - at least 3mil.
