There comes a point really early on where it doesn’t matter what yoyo you’re using. Exceptions disregarded, because 99% of you are using a yoyo where the only remaining variable that matters is you.
If you’re not doing the string twist, you’re probably not going to even be getting half of what some of us are getting. It makes a huge, huge difference to keep the yoyo centered and keep the string off the walls for the entire sleep.
Right after you throw the yoyo as hard as you can, grab the string an inch or two above the spinning yoyo. That’s how you’re going to be holding the yoyo for the duration of the sleep, not just letting it hang as it normally would. You can even just remove the string from your throw finger entirely if you want.
From there, you can twist the string between your fingers in either direction, and you’ll notice that this tilts the yoyo. As the yoyo spins, it will begin to tilt on its own, and you’re going to twist the appropriate way to counter this and keep the yoyo dead straight. When you do it right, the yoyo will never “spin out”, even when it’s still barely spinning at all.
I thought I’d time my spin time once, then thought again and said, “Are you crazy skitrz? You yo to beat boredom not create it!” Never thought about it again, not once.