When I first got my Big Deal, I took it with me straight to league and figured it would kill them. Well, 545 later I was dismayed with the ball thinking "Wow, what a mistake?" I could not get the ball down the lane, it was rolling out, and hitting terrible.
Then, I polished it to about 1500. Took it back the next week and the ball did everything I thought it would. 725 and $100 bracket bucks later I was a happy camper and still love the ball.
It gives me good backend and carrydown doesn't seem to deter it significantly. I am very impressed with the ball and it is always in my tournament bag. Most league night conditions, it simply is too strong and there is other stuff that works just as well without as much effort.
Hope this helps.
Scott