Anti skate and tonearm damping query


I have read a number of threads relating to both antiskating and tonearm damping on the JMW 9" Sig.arm and find myself a bit confused.......I have been experimenting a little and have reached the conclusion that I must be deaf. I have not used the additional antiskating system, I have tried twisting and not twisting the leno wire and can hear no difference. If the Leno wire is not twisted therefore no antiskate, will this damage the stylus or the album??
I have also filled the damping well above the taper to the base of the point and still cannot hear 'the music being sucked out' or indeed, an improvement. Do I fill the well up to the point!! and then work backwards. Those that finetune using the damping seem to have some sort of epiphany when the 'sweet' spot is reached.

Can someone please shed light on how I should be going about setting the AS and finetuning the damping on the arm. The table is a scoutmaster with super platter and sds, the cartridge is the dynavector Te Kaitora Rua

Thanks
wes4390
HP speaks on Oct. 3, 2009:

A lot of systems don't sound like music," said Harry. "They sound like hi-fi. When I go to Carnegie Hall, I sometimes close my eyes and try to pretend I'm listening to a hi-fi system, so I can see what I'm missing." Some of the great designers continued to issue great gear even as their hearing declined with age, because they were designing to what they heard in the concert hall. Hence the importance of a life reference, the experience of acoustic music performed in an excellent acoustic.

Harry also reminded us that his magazine was the first to hire women reviewers, and that women's hearing is superior in the crucial 4–8 kHz range. One of the very few women present (were there more than two?) then spoke, noting that she had to flee a number of rooms at RMAF because the sound was too bright. I wonder if she saw me asking people to either turn the music down because it was too piercing, or following in her footsteps and making a quick exit

It is always the same:
When you don't understand what you hear...but even HP can't change it anymore.
NSGarch:With all cartridges except those with the stiffest suspensions, as long as you can see the cantilever from the front of the cartridge, it's quite easy to set AS force visually. I always did it that way with my MM Shure cartridges. You just lower the stylus into the groove while watching the cantilever from the front. If it deflects to the right (relative to the cartridge body) you need to add AS force. If it deflects to the left, AS needs to be reduced. No deflection of the cantilever when the stylus hits the groove means the skating force is balanced out. It could also mean that the skating force (even without AS applied) is not enough to alter the relationships in the cartridge's generator (usually because the suspension is stiff enough to resist the skating forces) and so you would HEAR no difference with or without AS applied. Nevertheless, with no AS applied, the inner groove wall of the record would wear faster than the outer groove wall
Although I don't profess to have anywhere near the expertise in these matters of several of the protagonists in this thread, Neil's statement above seems to me to be the common sense bottom line, regardless of the fact that any anti-skating setting will be a compromise to a degree that will vary with position across the record.
NSGarch: The Grace 707 is a vintage tonearm calibrated for MM cartridges, not MC which require far less AS. The rule of thumb in the MM days was that the AS should equal the VTF, and even at that, how much sideways AS force (in grams) was applied was definitely NOT the same as the actual weight on the string.
FWIW, I have over the years used several MM/MI cartridges on multiple turntables and arms (mainly a Grace F9E Ruby and a high output Grado Reference Sonata on a SOTA Sapphire with Magnepan Unitrac tonearm), and using the visual alignment method I've consistently found that the optimal setting was about 2/3 of the setting recommended by the tonearm manufacturer for the particular vtf.

Regards,
-- Al
Al, thanks for the reinforcement. You obviously have more insight/experience than you want to claim ;-)

Tonarm, I really have nothing further to say to you ;-(

Neil
Hi guys,
this developing argument reminds me somehow of what Søren Kierkegaard (19th century Danish philosopher) who once said: "If you get married you'll regret it, if you don't get married you'll also regret it, and if get married or do not get married you'll regret it.

Oh, he also said: "If you hang yourself you'll regret it, and if you don't hang yourself.... :-)

Now replace 'anti-skate' for the 'married' or 'hanged' bit, and see what it looks like...
I'd say: you regret it :-)

Greetings,
Axel
Nsgarch, I have no idea where you got the idea that the Grace was used with MM cartridges, it was sold as a package with the Linn LP 12 and Supex cartridge in England and I sold it with the 901 Supex over here. I also have no idea where you got the idea that MM and MC required different settings, I have followed the literature since the early 60s and never heard this. We are talking about a mechanical system here, how does the physical force pushing the arm know whether it is a MM or MC. Could you tell me where you got this idea? I have sold tables and cartridges for over 30 years and I never saw a mention of different compensation for MM and MC by any manufacture of either MM or MC. It was also applied SOELY on the basis of tracking weight, the test I quoted simply said that the bias force was off by a factor of two. This test was done by people whose knowledge of the subject far exceeds that of either you or I so you have either discovered something unknown to others or only true in your universe. Otherwise I would think arm manufactures such as SME would make some mention of it.