By the time that ROCH ended, Gwok Jing had trained in the 9 Yum Jen Ging for around forty years...almost as much time as the manual's creator, Wong Seung had (although not with the same obsessive singlemindedness).
Imagine this: Gwok Seung returns home to Seung Yeung after her visit to Shaolin (instead of continuing her fruitless search for Yeung Gor). In this alternate universe, Gwok Seung has memorized the ENTIRE text of the 9 Yeung Jen Ging (not just a part of it). She tells her father about it. Curious, Gwok Jing tries to train in the 9 Yeung Jen Ging.
Will he fire deviate? Will the incompatability between his own 9 Yum Jen Ging skill and the new 9 Yeung Jen Ging techniques cause an internal conflict?