I don't know whether this has already been discussed before, but anyway, here goes: YJJ was probably most famous in DGSD era, and it continued to be famous in SOD, later on in DOMD. However, YJJ seemed to disappear in the Condor Trilogy era. Due to the Fireworker Monk incident, perhaps we can understand that Shaolin was *closing* itself during the LOCH and ROCH, but in HSDS I think it became prominent again. Yet, in HSDS we did not see the appearance of YJJ. Instead we had 9 Yang, which *may not be* as good as YJJ (this is arguable, of course). So, what actually happened to YJJ in the Condor Trilogy era? Nobody in Shaolin managed to master it?