It was awesome!

Balls that I tried were:
-Total NV
-Hawg Zilla
-Black Widow
-SR300
-Hammer Pain
-Whirlwind
-Vibe

It's pretty astonishing how even though all the balls had the same layout, the reactions were so extremely different.

I really enjoyed throwing the Total NV, especially when the shot was still fresh.  It's probably the most skid/flip and 'off-the-spot' ball I've ever tried; I think it lives up the hype.

The Hawg Zilla was a really smooth rolling ball for me.  It seems like a ball that would be great for controlling wet/dry conditions, but the ball rolled a little too early for my liking.  Decent ball never the less.

The Black Widow is really strong on the backend, but it's not quite as flippy as the Total NV.

The SR300 was a smooth and low flaring ball for me.  I had to get straighter with it.  I wasn't that impressed with the carry of the ball no matter where I played it.  It seemed to die out fast and early.

The Pain was one of my favourite balls that I tried.  I found it to be a good benchmark ball; it was smooth but strong, and it was pretty versatile no matter where I played it.

The Whirlwind was an awesome ball.  I really liked the length and energy retention of this ball.

The Vibe was also awesome especially towards the end of the demo day.  It clears the heads so easily, and it's a lot tamer on the backends then my Desert Heat or Punisher.  I think the Vibe is great when the heads start going and all other equipment checks up in the mids and hits flat.

Overall, I really enjoyed trying out a lot of different balls.  I found great success and matched up well to almost all of the balls (except the SR300 and Hawg Zilla), and I wish there was more time for me to try the Smash Time and No Limit.  I would definitely consider buying Ebonite/Hammer in the (near?) future.
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Dino