In Shaolin at the later part of DGSD, when Murong Fu used 100% of his energies in his Dou Juan Xing Yi (Star Diverting Skill?) against XF's HL18Z (also 100%), the Sweeper Monk was able to dissipate all of XF's 100%-blow. And the monk did so simply by putting his hands together to emit some sort of energy that created an invisible "wall" between MRF and XF.
But later when the SM wanted to kill XYS and XF tried to prevent by striking him, also with 100% power, the SM had to resort to trickery to deceive XF to withdraw one hand so that XF's blow was effectively reduced to only 50% of his power. Why? If the SM could easily dissipate XF's colossal 100%-blow earlier, why couldn't he do the same now? And on top of it all, he was injured by XF's 50%-blow, having his ribs broken and throwing up blood. Why?
Also, the way the SM stooped to deceit after all his preaching ... well, I'm quite bothered by it. I mean, he's the only nice monk that I know of in JY's universe. It's akin to learning that Santa pillages, plunders and pilfers.
BTW, after XF has warded off Abbott XuanCi's, XuanNan's and XuanJi's blows and left Shaolin, carrying Ah Zhu (disguised as ZhiQing), the 2 younger Xuans were commenting about XF's formidable skills. But the abbott was staring in the direction where XF had gone, deep in thought. What was he thinking about? Regret that he had a hand in shaping XF's martial arts? Fear that XF would come after him, and he wouldn't be XF's match? Do you think he even entertained the thought that XF might not be the murderer?
Another thing - in Xin Zi Ling, when ZhiGuang Monk heard the words "Yen Men Guan", a series of expressions darted across his face, the first being excitement. Excitement! Now, this seems very out of character for him. I thought he's a benevolent person. Why would he be excited by the massacre?? Unless there's a part of him that was secretly thrilled by and enjoyed watching the hair-raising slaughter and bloodshed?