If no drill works for you there is a tool that is fairly expensive but it causes you to load properly and stop swaying the website for the training aid is http://pivotpro.net/ 

I don't know how old that ball might be, or if they are still making it for foreign countries. Back around college in the early 70's, Titleist made a 100 compression ball that was black Titleist with a black number. the 90 compression ball was black name…