From what I read (I'm just a long-term expat in HK, so this doesn't affect me directly) there is a waiting time of several months just to get an appointment at CTS to renew home return permits. The problem is such that recently expired HRPs are being accepted by China for entry.

The Emperor has decreed that all people of Chinese ethnicity are Chinese subjects (whatever their paperwork says) and that they must all be able to read and speak Chinese.

Since you obviously don't come to this part of the world very often, would it not be easier to renounce your Chinese citizenship? I believe you could do that and at worst be downgraded to Right To Land in HK, which basically gives you all the same things anyway.