How would the outcome have turned out if in SOD,

[Mr. Mok]

if LWC had learned Sai mun chui shuet's sword skill from FQY instead of Dugu's DG9K?

Sai mun chui shuet's sword skill also focuses on the opponent's weakness and in a way he "begs for defeat" as he wants to find a worthy opponent so I think it can be a good "What if" imagination scenario if FQY had actually encountered knowledge of the Sai mun chui shuet character from his Sifu(whoever that may be) instead of the Dugu character.Never mind if the timelines don't match or if SMCS lived during the Ming dynasty.

[Ren Wo Xing]

Pretty badly. SMCX's sword skills had a MAJOR flaw in that all his stances were killing stances; he himself, in several cases, expressed regret that this was so. This actually severely limits the use in dueling, as unless you intend to kill the person you are having a 'friendly duel' with...

As was said in the novel's, whenever Ximen unsheathed his sword, it meant one of two things; either you die, or he dies...

[Han Solo]

Also the other thing is that a inner power weaken LWC simply couldn't hope to use SMCS's skills in XAJH. simply disastrous.

[Mr. Mok]

Fung Ching Yeung who obviously only knew the non-internal/chi based part of Dugu kau bai's entire martial arts which was the Dugu 9 swords,passed it on to LWC who learned it with success because it was not internal based.

So maybe what if Fung Ching Yeung passed on the non-internal sword skills of Sai mun chui shuet to LWC instead?