Basis Vector 4 arm question


Hi all,first post here,appologies if this has been asked before.
Re the silicon arm damping,I followed the instructions and filled the well up to the bottom of the radial bearing, however I read somewhere that the level can be adjusted and this will alter the sound,has anyone any experience of this and what are the effects.
cypry
Phonostage is an ARC PH5,now fitted with the Russian Rocket tubes,used to use 500ohm on the VPI,have now set to 100,tracking at 1.9 grammes,as before,have been playing with the VTA this afternoon and that seems to be going in the right direction,have yet to settle on the optimum setting,but am getting there.
Thanks for your advice,whilst the arm is the easiest unipivot I have ever set up,fine tuning is another matter and not just the arm,with this arm fitted to the 2200,I found the prodigiuos bass masked the midrange on my speakers,fitting bungs in the ports has cured this.
I just got into vinyl and bought a Basis 2200 because it is proven winner and a well planned and made table. As i am not into tinckering too much, i am thinking and i might be alone in this, but i would think for a table at this price range and a company owner that devotes his livelihood to putting out the best product, i would think he would have already tried all fluid levels and went with what is the best for his tables to sound thier absolute best? IMHO.
Does anyone have a copy of the arm set up DVD they could copy for me,have tried the UK importer with no luck,would be willing to cover any cost.
I see it's been 2 1/2 months since your prior post, are you still having brightness issues on some LP's? Did you use the Mint LP for cartridge set up? Have you tried setting the SRA at 92* and adjusting VTF than anti skate to deal with brightness? I have a Vector 3 on a 2500 and find I have to make very small adjustments in VTA for some record, when I had the Vector 1 with a Koetsu Urushi Black the combo wasn't at all "bright". Next I would look at the tubes in the PH-5 and possibly just bite the bullet and get some Amperex 6922's or other NOS, non Russian tubes!!! A friend had a PH-3 SE and was amazed by the improvement when he switched to Amperex.
It is impossible to determine what would be the optimum amount of dampening for all the possible arm- cartridge combinations. It will at least partly depend on the rest of the owners system, room and taste. And even if it were possible, knowing audiophiles, some would violently disagree. I am sure if any of us make it to heaven [ highly doubtful LOL] God will be deluged with suggestions about how to improve the Heavenly Music.