Wish they would run on more obscure (read: lower than Grade 1) tracks like Okayama (Aida) or Autopolis in Japan, Madras (Chennai) in India or any track in China with some decent elevation (is there one??).
Anyway, there's plenty of choice on the official FIA Grade 2 list:
https://en.wikipedia.org/wiki/List_o...rade#Grade_Two