@ Retillion: Thank you for the suggestion. I have followed it. The reason I didn't change it to Siberia before was because the province 'West Siberia' was not under control of Pacific-Russia. However, after looking at it more, I realized that 'West Siberia' was actually not a very accurate name and Siberia was more fitting as a name for Pacific-Russia than I originally thought. I have also changed some province names now and redrew some borders, without changing connections, in that region.
@ tantrumizer: I am glad that you like the initiative and I agree that China is the weakest power in the original variant; even more so, I have done some statistics on a large sample of games on webDiplomacy and China came out as the weakest. I think the reason for China's weakness in World IX is because China is the only logical option for Pacific-Russia to attack, and it is logical for no country except China to attack Pacific-Russia. Hence, in World IX, most of the time China is locked in a war against an opponent he has no allies against. Often, India will use this opportunity to attack China too. I think I improved China's position in World X by allowing for more options. Let me explain why I think so. China COULD still be ganged up on, but it could also be that Siberia and Japan will fight each other, giving China opportunities, and even if they ally, they could still decide to attack Canada, not China; and even if China gets ganged up on by all its neighbours, all its neighbours have more neighbours that they have to worry about now, like Russia, Canada, Australia and Near East. This is an example of what I meant on webDip by 'improving balance by encouraging more interactions between players in the early game'. China has a lot more options diplomatically now.