My question is why the need if going on a trip if to only comply with DMV law in a particular state. I believe helmets should be freedom of choice. We have that in Pa. My choice is to always wear a helmet. Sure in a violent crash a helmet may make no difference. It the non violent crashes a helmet will make a difference. Remember Gary Busby, Ben Rothelisberger slow speed accidents and no helmet and they survived with only mild lasting brain injuries. The are of the lucky ones. My advice is drop a 8 pound mellon from 6 feet and see the results. Might get you thinking?