Thanks for the replies. I pulled the ball off the shelf and, upon further review, noted that it actually had very short pin. Like 1.5 inches. Speaking with my driller, it was determined that the specs of this ball didn't match up so well with me considering my high track and long span. Very limiting for this specific ball apparently. So instead of trying to round off the corners of the square peg, I'm going to save my pennies for something else down the road.
In the mean time, still live my TA. And I have a used Brick for heavier. To close the book (I'm sure you're all dying to know), I emailed Phil and he thought, if drilled the same, these would be an effective 1-2 punch for medium to light conditions.