how is feliks zemdegs' yuxin 5x5 set up?

[TheChaiCuber]

I really like the sound of Felik's yuxin as it sounds crispy, kind of hollow and really smooth. I tried using weight 3 on pieces and traxxas on the core and it seems quite different. Anyone know how to set up the yuxin 5x5 to have that speed, sound and feel? Maybe someone set up their yuxin very similarly compared to Felik's to where they'd like to share with me? thanks!!!