During HSDS, Beggar's Union Chief Shih For Lung gave the villain Sing Kwun a tough fight despite Chief Shih not knowing the complete Hong Lung 18 Palms. Chief Shih never successfully learned all eighteen palms because he lacked the inner power to do so, and injured himself badly trying to learn the palms.
If Chief Shih had successfully learned all eighteen palms, however, could he have defeated Sing Kwun?
Logic problem: Chief Shih's failure to learn the Hong Lung 18 Palms was attributed to his lack of inner power, but given the good fight he gave Sing Kwun even without the complete set of palms, the implication is that Chief Shih's inner power wasn't that bad. The chief's inner power should have been at least somewhere near the level of Sing Kwun's, which is quite a high level in the HSDS era even if it falls far short of the levels of Greats such as Cheung Mo Gei and Cheung 3 Fung.
For certain, Chief Shih must have had greater inner power than Gwok Jing did during LOCH when Gwok learned the complete Hong Lung 18 Palms from North Beggar Hung 7 Gung, right? If 18-year old Gwok Jing, who hadn't even begun to train in the 9 Yum Jen Ging inner power techniques, could learn the complete Hong Lung 18 Palms with little more than the meager Cheun Jen Sect inner power training he gained from Ma Yuk in Mongolia, then surely Chief Shih shouldn't have done worse.