Chopin actually wrote "attacca il presto con fuoco" on the end of the last page of Op. 10 no. 3, refering to the following Op. 10 no. 4. There are many questions whether they are are supposed to be played together, but I believe that they are not actually connected in any way, being performed separetly in many occasions. Except that, if you are playing the entire set, this should prepare you for a more tense performance of the following. This is probably one of the few editions that indicate that.
Has anyone learned the entire Op.10 etudes? I am in the process and would be interested in hearing how others went about it. At the moment, I've been adding a new etude every few days while continuing to practice the etudes I previously learnt. It's been working fine so far, but once I get near the end I will need a heck of a lot of practice time to get through everything. It takes me on average two hours just to memorize ONE! I am a third of the way through.
I am also on the process of learning them. I've found some difficulties, but everything runs fine with everyday practice. I am now using 2 different editions, Cortot's (which I think is the best there is) and Mikuli's edition. They have some differences in technique usage, which can be very profitable for the performance of the piece if you learn both.
Those are very good Etudes, and great pieces.
Enjoy pratice!

Mario Barbosa