From the ET2 manual:
*****It is desirable in most cases (low to medium compliance cartridges 5x10 dynes/cm-10x20 dynes/cm) to use the minimum number of counterweights, far out on the counterweight stem. This decreases the horizontal inertia of the tonearm while increasing the vertical inertia....
....the weights should end up close to the end of the I-beam*****
Speaking of the manual, I have not seen a better or more informative manual with any other piece of equipment that I have owned.
*****It is desirable in most cases (low to medium compliance cartridges 5x10 dynes/cm-10x20 dynes/cm) to use the minimum number of counterweights, far out on the counterweight stem. This decreases the horizontal inertia of the tonearm while increasing the vertical inertia....
....the weights should end up close to the end of the I-beam*****
Speaking of the manual, I have not seen a better or more informative manual with any other piece of equipment that I have owned.