I have question with the new rule.
"Every second Scar also applies -1 to an Ability of the investigator’s choice." Does this mean 2 unsuppress scar, or 2 scar total?
Two total. The suppression doesn't remove Scars.
I realized immediately after writing this that there were still some issues with the text. I've revised the PDF to better clarify how surgery tokens work. Current version is 12.12.24a.