The VT-BAM project

you know what, if you inspire me enough, I might just make some work on the HRE.
Great! We need a HRE VT-BAM!

I could maybe add or start with some details to South West Germany.
Here is a good source for the exact borders of South West Germany in 1790

I still need to learn to increase the accuracy when adding historical borders without similarity to OTL-borders. What are your techniques to archive high accuracy (is there somewhere a good tutorial?) ?
Any basic tutorials to start off when it comes to borders? I mean, I know how to use Paint.NET but I need to learn the best tricks. I'm currently stuck on the tedious SHIFT+LClick tracing method.