I am recently getting back to cycling after moving and have an Edge 820 I purchased in 2017. I forgot how frustrating the touchscreen can be. I am looking to upgrade to either the 830 or 530. It seems to biggest difference in software features is the ability to route to a specific address. On the 830 or 530, am I able to navigate back to where I started if I get lost in the middle of a general ride or some sort of similar scenario? Also any advice on the newly updated 830 touchscreen?