I just finished learning this a few weeks ago after toying with it for YEARS! 6 against 5 isn't that difficult. The ones that follow are more problematic for beginners. Take the left hand and play it at a steady tempo 10 times in a row. It's best if you do this with a metronome. Then play the right hand 10 times in a row at the same speed of the metronome. Left hand 9 times, r.h. 9 times, l.h. 8 times, r.h. 8 times, etc. After you've finished the sequence down to one time each hand, together! It worked for me.