i recently got a nvs and the ball reads the lane horrible. i polished it a little more but it still sucks.  any weight to put in this ball to make it better?

what lane condition, how is it drilled, what are your specs, tilt revs, rotation, speed? too many variables to say a ball reaction sucks.

flooded middle, worn outside, relativly high revs  16-17 mph,  pin under ring finger cg slightly right with a weight hole   pin is out about 2 in

If you own a boat I heard they make great anchors.  Just kidding I can't help with tech stuff.

my son has an NVS and it needs alot of head oil. He bowls in a house with guardian heads and dry outside to make things worse. He rarely  gets to use it