The last several years we have refined the route and left it the same. It has worked out well.
We are limited to, rest area with bathroom for a large group. Restaurant that can take a large group and get everyone out within a reasonable amount of time. Gas Stations that we can get large groups in and out easily and also roads that are less traveled. Also roads that are curvy, but not excessive so we don't get someone hurt.
Route 555 is one of the self guided rides we have from the motel.
Everyone has a good time.