Well, I added my 4th Track ball to my arsenal (now I have an Animal, Rule, Slash and Havoc). Thanks to Excaliber's suggestions for the layout, I went with the pin 4" away from my PAP and the MB right of the thumb 6 1/2" from my PAP. We placed the pin 2 1/2" above my midline. Original specs were 15 lbs., 2 oz. with 3 3/4 oz. top weight and a 4-5" pin.
My driller believes this will become a benchmark ball in the bag as well as a good ball to read lane conditions with. I can't wait to see how this ball will perform in my leagues around here. I haven't had one problem yet with any Track ball to date as far as performance and reliability, and I think the Havoc will continue the good looks I've had on the lanes. I will post more as I get more games under my belt.
Matt