To damp or not to damp JMW-9 Sig ?

Please be more specific about the adjusting screw for damping. I find no mention of it in the instruction manual, and don't see one one my arm, although mine in a 10.5i which very well may be different

On top of the bearing on the arm tube (when you look at the arm from above) there is a hole with a screw in it. This screw will lower or raise the top of the bearing inside.

No metion in the manual, that is right, but this is what I've been told by HW at VPI.

"The center screw in the top of the armwand adjusts the damping level. Clockwise from the top and you have less, counterclockwise and you have more. Don't drop it too low as you need clearance for motion."

It's a screw down there! No, the hex key is not supplied (VERY strange, indeed), so you have to buy it. Don't remember the size, and I'm not home this week, so I can't check it out. VPI should know.

This damping thing sometimes makes me wonder. I've had three different armwands (2 x 9" Signature and a10.5i) and also put up the 12.7 arm for my friend. None of the arms, as they came from VPI, experienced any damping when the "cup" was half full. Mostly 2/3 or more. I suppose most arms are like that. Very few know about the screw on the top. Strange thing is, everybody seems to experience differences, even though I'd bet most of them had no damping even though the cup was 1/2 full. You have to check - as Artemus_5 did - that there is damping fluid attaching to the part of the bearing on the arm wand.