Hey Doomdark, excellent work on the IGC 1.9... I read through the readme file and am truly awed by all the changes in there! I really wish Paradox will incorporate 95% of all the IGC changes into the regular GC. 
However, I have a couple of suggestions, which in all likelihood have already been suggested, but I'd like to hear your feedback:
1) New country of Korea (Choson) in the provinces of Kyongju and Yalu. Creating a leader file for them shouldn't be too hard either (I can help). This would make the Asian sphere more realistic and more politically dynamic as well.
2) Increased fortifications throughout China & Japan, to reflect the immense historical difficulty in conquering those two countries. No asian province was ever besieged by European powers historically, but in the GC several European powers can annex all of China in a year.
However, I have a couple of suggestions, which in all likelihood have already been suggested, but I'd like to hear your feedback:
1) New country of Korea (Choson) in the provinces of Kyongju and Yalu. Creating a leader file for them shouldn't be too hard either (I can help). This would make the Asian sphere more realistic and more politically dynamic as well.
2) Increased fortifications throughout China & Japan, to reflect the immense historical difficulty in conquering those two countries. No asian province was ever besieged by European powers historically, but in the GC several European powers can annex all of China in a year.