SME lV arm upgrades?

Thanks for the advice Nsgarch. My next question might seem to indicate that I don't have it, but could you tell me how I might know if I've got the optional damping trough? It's been awhile since I set the arm up, after it was on the turntable that I purchased. What benefits are suggested with the addition of the damping trough?
Also, is this something I'd order from an SME distributor, or is this an aftermarket piece?

Thanks,
David

Thanks Nsgarch. I looked, and I don't see anything on the main pivot post between the part that holds the anti skate adjustment and the base. So, I guess I can order the fluid damper kit. Thanks.

Jfrech. I looked, I have the stock cable going from the arm to the phono stage. I think it's stock, the RCA at the phono stage end say "SME England" on them.
I'll try and find the cables you've recommended. Do these come up in the cables section of Audiogon I wonder?
Thanks again.
David

Thanks Nsgarch

That's what I'm working on now, though I've also emailed Elaine @SME to see what's invloved in getting a damper.