As so often the case your beliefs are suspect.
Nobsound Record Clamp
In short DO NOT buy it. It is a knock off on the Michell clamp but only 35$ on Amazon. So, I decided to check it out.
The collet is made of cheap aluminum which easily bends. It will work harden and snap in short order. It is difficult to get off. The collet spins with the knob and you can not loosen it so you just have to pull it off. The collet should have had a key way. All this pushing and pulling is not good for your bearing. SME and SOTA have it right. This is a poor execution with poor materials.
The collet is made of cheap aluminum which easily bends. It will work harden and snap in short order. It is difficult to get off. The collet spins with the knob and you can not loosen it so you just have to pull it off. The collet should have had a key way. All this pushing and pulling is not good for your bearing. SME and SOTA have it right. This is a poor execution with poor materials.