My ballstriking has vastly improved as I have struggled to create, then sustain, proper power package angles. My power package may not be traveling through the air on it's exact tract (plane) but I am now getting blood out of the ball. I am experiencing a very tender left thumb (I'm right handed), especially at its base. I am somewhat of a closed-to-open hitter, and holding off is my feel when compression takes place. I am guessing this tenderness is due to me trying to hold off excessive acceleration or throwaway and it hurts to hades when I leak, but it is a mixed blessing in that to avoid the pain, I slow down, load the lag and try to sustain it. Any thoughts?