Are those the yo-yo factory center track? I normally use og concave ceramic diff e yoyo bearings & still trying to make it though my og g-strings but I’m on my last alchemy poly-nylon…
These are the MagicYoYo version of them. I haven’t used konkave in a long time because it felt like they caused backspin binds. I miss g-strings. Paul Wallace was in the process of making a comeback just as the pandemic began and then he stopped :/