I Agree
I have a 10ball bearing and that thing is smooth! Smoothest bearing i ever had. It was so silent. When i cleaned and lubed it got a little louder but it was still super smooth a kind of quiet.
I also have a KK and that thing is also smooth but has a little sound to it. I cleaned and lubed it and it did get a little louder but it was still smooth also.
I think the 10ball bearing is actually better than the KK because it as a longer spin time,it’s much smoother, and is very quiet. I would recommend the 10ball bearing to anyone, and everyone should have one.
~Steven