Maybe the difference you hear has to do more with the amount of torque applied. Are you using one of those small torgue drivers to see what pounds per inch you're applying?
I ask because from what I've read, and been told, Bobby from Merlin speakers had his screws tightened to a specific torque value as he heard a difference in the sound when using different values.
I ask because from what I've read, and been told, Bobby from Merlin speakers had his screws tightened to a specific torque value as he heard a difference in the sound when using different values.