If you're the leader, you lead. Others will have to trust you and be understanding if you do screw up. I've never had a problem with any of the Dayton peeps on a ride, even when I do screw up the route. Little note, bring up the map on Google Maps, select to send the directions to someone, copy and paste directions to Word, and print out into a small sheet. Tape that sheet to your tank. That way you can at least glance at the roads you're supposed to turn on.