I own a Sound-Smith Paua II on a VPI Prime Signature with JMW Uni-Pivot. Thought I had the cart and arm zeroed in but just had the opportunity to have J.R. from WAM Eng. install the dual pivot and correctly set up the cart. All I can say is WOW. You don't know what you are missing until you hear your TT/arm/cart properly set up. Fine Line styli require very careful alignment to sit into the grooves properly. I'm not trying to promote WAM but in my experience I now am convinced that without the proper set-up tools your cart is probably not performing at it's best. The geometries involved are in the sub-micron range. It's not something you can do by ear.