Aww, I was enjoying listening to your 10/2, and it cut off!
The 10/2 is one of my favorites, too, and I find it easier than the 10/1. Perhaps that is because I have worked on the 25/6, but I also found the 25/6 to be easier than the 10/1.
In my opinion, though, the hardest etude is the 25/4. The jumping in the left hand makes the 10/9 left-hand jumping look mild.
Yeah, I cut it off because that's where I screw up!
Bars 25-34 are insecure at this point. This etude is really giving me problems. I can play it slowly and not miss a single note but I want to play it at 144. I may split the difference and aim for 126+-
You know, it goes to show how different pianists encounter differing problems, depending on individual quirks. I find the jumps in the 25-4 not particularly hard to execute, but the 543 oriented fingering of the 10-2 extremely difficult.
A note about the 10-9: I play the LH legato, with the fingering pattern 5-3-1-4-1-3. I can't do the pattern 5-4-1-4-1-4.
Okay, here's something else I'm working on. This is the first time I've recorded myself playing this.