Which Bearing do you prefer? ???
Longer spin, more quiet, awesomeness.
Just because the string gets aligned by the KK doesn’t mean it will improve your sleeptime. The KK is made for unresponsiveness, not for straighter throws.
If you play like shinya kido and do thousands of braintwister combos, a kk will help you handle more string layers, because it keeps the string away from the sides.
But i prefer just using a 10 ball and shims.