Looping Tricks are challenging to learn but thrilling to behold. In the Two-Handed Yoyo Trick section you will learn new ways to wind the yoyo and deal with string tension specific to two-handed tricks.
The most challenging of all the styles--two-handed string tricks done with two yoyos.3A yoyoing requires wide yoyos that are stable with long sleepers.
Offstring yoyoing is done with the yoyo not attached to the string. This involves learning a new way to wind the string and to throw and bind the yoyo. With the right yoyo, offstring (4A) tricks are actually not that difficult to learn.
Freejamd style ypyping is done with a counterweight attached to the end of the string, instead of having the string attached to your hand. This allows skilled players to move the counterweight and the yoyo separately for unique and exciting yoyo tricks.
Baier, H. (2014). Yo-Yo World trick book: Featuring 50 of the most popular yo-yo tricks.
Brown, S. DuncanYoYo trick book.
McBride, M. (1998). The yonomicon: An enlightened tome of yoyo tricks.