Just a thought but, since so far we're getting many reports of "forced" DCC occurring in mainland China, Hong Kong, and Macau, what's the prospect of using Discover Cards (have no annual fee, has no FTFs or have a DCC policy like VISA or MC) and using it through the Union Pay network?
The caveat of course is that Discover doesn't issue EMV cards yet which is becoming a must for international travel, but they will eventually do so soon.