Ahh, the great Winter Wind!Awesome piece, if I might add. I learned this piece not too long ago and I remember how I struggled the first week, but then everything sort of came naturally. The rhythmic practice is the best way to build fluidity. But you must practice patterns, because the right hand is all about patterns going up and down the piano. The best advice I can give is this:The right hand is extremely tough. You must practice hands separately. Master the LEFT HAND FIRST. Make sure your left hand is memorized throughout the piece. Since the left hand is not that difficult, get it out of the way. Master the entire etude for the left hand. Then sit and carefully work on the right hand with your left hand following along. This will allow you to concentrate entirely on the difficulties of the right hand, while your left hand helps keep the piece moving. This is how I learned it in three weeks. Good luck!~Max~Not an easy etude, I found this up there in difficulty with Rachmaninoff's Moment Musicaux 4, Liszt's La Campanella, and Scriabin's Op.8/12.