you mean opus 25/6?
I second the 14/25 usage esp. at meas 4 where 14/25/14/32 then of course the 52 prep for the ascending chromatic beginning at meas 5. This etude, among other things, is intended to help develop use of 4th and 5th fingers.
Actually, Chopin writes "3" on the first third.
Whatever Good luck PMZ.
If you'll pardon a brief digression, I must say that I find it hard not to think of that piece without remembering a bit of it played on television by Peter Maxwell Davies who is, after all, not especially well known as a Chopin interpreter; the occasion was when he was interviewed for a programme about his old friend and colleague John Ogdon and he sought to demonstrate how hard that opening was for him whereas, of course, Ogdon took it in his stride without even thinking about it. I'm sure that PMD never worried overmuch about the most suitable fingering...