Originally Posted by
ChanceEncounter
This explanation has flaws too. YG had not used the HIS in some number of years, so he did not have access to it on the fly.
YG intended to use Jade Maiden swordplay against JLGS. Jade Maiden is roughly a great level martial art, as is Sad Palms. Now, YG obviously feels that having a weapon is better than having no weapon to attack JLGS, thus he feels that Jade Maiden (with a sword) ~= Sad Palms (with no weapons), but since Jade Maiden affords him a weapon, he will go in better prepared and use it.
When his sword broke, he was very surprised, and felt that he was overconfident, because he had beaten the JLGS 16 years ago and did not anticipate such a large improvement in his skills. He regretted not bringing the HIS, which clearly implies that the HIS > Jade Maiden, using the transitive property above, it can easily be extended into saying that HIS > Sad Palms.
Now, your explanation depends upon a very shaky premise, and that's that YG would go into combat with an inferior technique/position and intentionally put himself at a disadvantage. Obviously if the techniques are roughly on the same level (e.g. Jade Maiden and Sad Palms) and one affords him a weapon while the other doesn't (plus, he can always go back to using Sad Palms if the weapon doesn't work out), then the most prepared means of doing it is simply to use his weapon and then turn back to his palm if needed. That's probably what happened here.