@AndyD I worked on those bits a little bit yesterday, and my fingering is the same as yours. Of course I’m only just getting into this part, so it might change, or maybe my teacher will suggest a change. But this fingering is also in line with how the score is written, and I’d prefer to play it that way.
In his video, Hugh Sung says he tries to make fingering choices that avoid over-stretching the hand. This is a good idea as a general rule, and I usually do the same. But those LH notes are not held notes and you don’t need to keep your pinkie on that Db (for example) so I don’t think playing those first four notes with the LH will necessarily cause an over-stretch.
Actually, maybe it’s just as important to work on bringing the LH over (to the right) as you play those notes… I’m trying to remember which video it was, but I was watching someone play CdL with a nice overhead video shot and really noticing the horizontal movement of their hands.
Anyway, I’m not saying I’m in a position to question an accomplished pianist like Hugh Sung, but for now, I’m going with the standard fingering.
Also, as an aside, I seem to keep wanting to type this name as Huge Sung…. And the famous actor as Huge Grant…
(Sometimes you can’t blame it on autocorrect…)