Now about 8,000 light years out, but still 15,000 from Colonia. Found my first virgin ELW of this expedition. Last system I dropped to had three ammonia worlds, two were in co-orbit or whatever it might be called. I'm passing up a lot of mapping opportunities on terraformable HMCs, Gotta balance the time. I don't want to be doing this for a month. But I try to map all ELWs, WWs and AWs I come across. The route I chose has proven to be amazing, as it's nothing but undiscovered space. Every now and then I'll see a commander's name. But I can tell not many come this way when heading toward the core.
I'd really like to find a beta site nearby to get my first discoveries.
Wow you are doing great! On my journey, I did a ROAD TO RICHES jaunt which, I guess took me along a more beaten patch. I did diverge now and then and made a few FIRST Discoveries and FIRST Mappings, but nowhere near yours.
I think I only went about 3-4000 light years.
EDIT: I used the Colonia Connection Highway
https://elite-dangerous.fandom.com/wiki/Colonia_Connection_Highwayto plot a Road to Riches jaunt to Amundsen Terminal
https://elite-dangerous.fandom.com/wiki/Amundsen_Terminal