Hello Bob, long time no talk to.
You said:
Unless I missed something, or the set up tools have changed, a unipivot design allows for several thousands of an inch variation in the measurement between spindle and tone arm pivot, regardless of how accurate the laser engraves the target.
Also:
Perhaps my own failing, but I was never able to hold the cartridge, depress the plastic gauge against the diamond to an extent to feel comfortable with the alignment. Add to that, the user has no way of knowing how much stylus force is being exerted with one's fingers, assuming you could hit the 1.25 grams and if that were the correct force needed (which for my cartridge is WAY off).
Like all set up systems, there are limitations. I have an easier time with the Graham system than the Wally and easier with the (discontinued) Cart Align than the Graham.
Discussions here at Audiogon are partly for our own amusement and to exchange ideas and technics.
You know I respect your arm as I have defended it in countless threads here at Audiogon. My own methods for set up are personal and like many choices in one's system are based on trial and error.
You said:
"...Graham estimates that distance and is frequently off by several thousandth's of an inch".... This is wrong, as the cross-hair intersection is exactly to the right specification, and engraved with a laser to prevent any possibility is template misalignment.
Unless I missed something, or the set up tools have changed, a unipivot design allows for several thousands of an inch variation in the measurement between spindle and tone arm pivot, regardless of how accurate the laser engraves the target.
Also:
Our instruction book also points out another fact that the writer missed: the flip-over target plate of the alignment gauge DOES place about 1.25 grams of load force on the stylus, thereby placing the cartridge in it's dynamic operating position.
Perhaps my own failing, but I was never able to hold the cartridge, depress the plastic gauge against the diamond to an extent to feel comfortable with the alignment. Add to that, the user has no way of knowing how much stylus force is being exerted with one's fingers, assuming you could hit the 1.25 grams and if that were the correct force needed (which for my cartridge is WAY off).
Like all set up systems, there are limitations. I have an easier time with the Graham system than the Wally and easier with the (discontinued) Cart Align than the Graham.
Discussions here at Audiogon are partly for our own amusement and to exchange ideas and technics.
You know I respect your arm as I have defended it in countless threads here at Audiogon. My own methods for set up are personal and like many choices in one's system are based on trial and error.