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. Once you have the basics down tons of great offstring yoyo tricks like the Offstring Whip are right at your fingertips.
With the right yoyo, offstring (4A) tricks are actually not that difficult to learn. We recommend the Duncan Skyhawk Yoyo and the Flight Yoyo by YoYoFactory. Both are extra wide, making offstring yoyo tricks accessible and fun to learn.