Thanks for reaching out with a great question! We have been pretty divided on personal routes for quite some time. On the one hand, they would be wonderful additions for planning trips! On the other, they might clutter our map as it exists now. Because creating and displaying (or not displaying) personal/custom routes on the site requires a bit of re-imagining of what our site offers, and how it might function, we haven't been able to address this one in the past. However, we have recently increased our bandwidth and we're hoping to be able to take on more projects like this in the near future. This particular question is at the top of mind, and hopefully I will have more information for you in the near future. In the meanwhile, I appreciate your patience.