I personally like friction shifting 7- and 8sp, and tried index first time ever on a 9sp for my daughter and then duplicated it on a bike I built for me. It's nice, and I know people who friction shift 10, but indexing makes a lot of sense at that point. And many good Shimano compatible index shifters are out there - Microshift.
Most people will agree you don't need to cold set 126mm to 130 - should spread the 2mm just fine.