Here is my review of the Track Arsenal Agressive.
My ball is 15 pounds, 1-1/2 oz top weight, with a 4" pin. I asked my coach for a drilling that would handle medium and play well on carry down. We ended up with it drilled with the pin at about 2 o'clock and right next to the pin, with the center of gravity just about in the middle of the palm of my grip.
As it turned out this is an ideal "control" type ball for medium oil type conditions.
On Medium Oil, the ball turns nice and smooth and very predictable through the middle and the backend is moderately strong without being jumpy or flippy at all. Also, this ball just ignores carrydown and I am very pleased about that. On the lighter side of medium, the ball still clears the heads nicely, but the backend starts to be a bit strong and unpredictable. On the heavier side of medium, the ball plays very well with a more direct line, but doesn't dig in enough to play an out and in style game on a heavier oil condition.
One thing thats very impressive about this ball is how well it retains energy and how well it transfers that energy into great pin action. The ball really does carry well, and sends messengers every which way - it really mixes them up good.
Also, I would like to tell you that I've shot my highest sanctioned series to date with this ball ( 196, 192, 233 - 621 ), and have had several games in the 240-250 range during practice.
In Summary, if you're looking for a super strong mega-hook type ball - the Arsenal Agressive is not for you. But if you're looking for smooth, predictable, easy to control and easy to make adjustments with - this is a great ball.