In this video when dekel attempts a 53, he throws the 5 then does 1 round of 3D, 3 catches. When i saw twister attempt it, he threw then did 1 round of 3D. Ofek throws then only does 2 catches of 3D.
If you look carefully at the two videos, Dekel and Ofek do (or at least try to do) exactly the same trick, which is a regular 53. With only ONE "3" throw under the "5". The throws you see after that are just regular "4", it might be confusing because he throws them before he catches the "5", but what matters is when he will catch them, and he does, just after he catches the "5".
Look at dekel video with the colored diabs, it's easyer to see, but in final the green diab (5) and the orange diab (3) just switched place and the other didn't move in the pattern.
I hope this, will help you to understand, but it kind of look even more confusing now!
By the way Ofek, nice vid, but there is still some work to do to land it correctly, keep on working, we want to see you do it a few times in a row now!