I think there is one Van Cliburn winner that is truely beginning to crack it... Olga Kern. She was on a concert tour here (South Africa) earlier this year and she was INCREDIBLE! On the first week, she played Rach 1 and 3, in one night, for 2 nights, if that makes sense. Second week: she played Rach 2, 4, and the Rhapsody ( In one night... then did the same the next night!) And didnt show any tiredness at all! Then she played her recital (Chopin 2nd sonata, Rach- Bach transcriptions, Brahms-Handel variations, etc) She is going to be great.