I employ the
AC/DC method. Using a utility knife I make a vertical slit (a match flame seals the cut edges) at the location that is revealed with glasses over straps. Helmet gets put on and strap clicked in, then arms of glasses are passed through the cut with arm over leading edge first thus an over/under solution.
Seriously, straps ALWAYS OVER ARMS. Helps to keep glasses on when abruptly transitioning from a vertical to horizontal orientation.
