[Pseudo Enigma]

Going to try to answer a couple of these with my limited experience having been out of the game for a couple years 〈(•ˇ‿ˇ•)

Originally Posted by STD_Sappy

If I'm playing on FFR Legacy, are scores that I get still relevant?

absolutely. We have multiple engines but scoring is valid across all of them.

Originally Posted by STD_Sappy

Third, are people using the Amazing judgment in recent tournaments? Or is it still Legacy's PA system?

Am-P-G-Av-M-B is just more precise than without Amazing. It's there to show off how ridiculous your accuracy is (you got it on the exact frame required, as opposed to within 3) Disregarding Amazings is still completely OK.

edit:
as for the global offset, I don't know. Other people can tell you what they use, but you're probably going to have to fiddle around with it yourself to find what is most comfortable. I can't tell you since I haven't played in a long time.