Browsing the net, stumbled up on this extremely helpful tool for rare trades and plotting routes. I'll post it for the people who haven't seen it yet and are interested in expanding/modifying their rare trade routes.
http://eliteraretrader.co.uk/
This thing practically tells you everything you need to know like distances between systems, how far the station is from HC exit, what commodities, how many they sell at a time, and how much you can hold max if you're patient enough. And plotting routes is very easy with the interactive visual tool. Then you can just scroll down to see the list and when to drop off commodities (it's not perfect so it just looks for the farthest distance in your route. It will be green if it's a good sell that's far enough, red if it's not)
Hope some people find this useful if they were struggling with routes.
http://eliteraretrader.co.uk/
This thing practically tells you everything you need to know like distances between systems, how far the station is from HC exit, what commodities, how many they sell at a time, and how much you can hold max if you're patient enough. And plotting routes is very easy with the interactive visual tool. Then you can just scroll down to see the list and when to drop off commodities (it's not perfect so it just looks for the farthest distance in your route. It will be green if it's a good sell that's far enough, red if it's not)
Hope some people find this useful if they were struggling with routes.