Ah... hmm... okay, the arm torque in the arm holder is fine. The arm holder is working well.
BUT... the connection of the trem base plate to the arm holder is loose... so the whole arm assembly is shaking...
Anyway.... brute force ruled the day... I got fed up and took a large piler, twisted as hard as I could... the whole arm holder is out now... Going to look for a proper nut this time round.. if it can't be found, then its a schaller arm.
