I purchased a new La Nina about 2 months ago, and have thrown it in leagues and tournaments many times since then. I had mine drilled straight up, off the label, nothing fancy. I also left it dull and gritty, as it comes out of the box. I threw it for one game of practice that night, right before leagues, on a condition where there is heavy oil from 10 to 10. I am right-handed, and I began by standing left at 30, and throwing the ball over 17, out to 10 and back. The ball was an absolute hooking monster, and my first 3 shots went way brooklyn. I couldn't believe it. So I moved further left, and kept it in the oil longer, throwing it over 20 to about 12 and back. Still went thru the nose. After about 4 more shots I was able to hit the pocket by moving further left and playing around the 22 board. After getting lined up, I shot a practice game of 258. Then I decided to use it in the league that night. I shot 256 with it the first game, and my teammates and all the members of the other team were having a difficult time getting anything to hook. It was funny. A couple of members of the other team said I must be using an illegal ball! I simply told them they needed a particle ball like the LA NINA I was using. I went on to shoot 691 with it that night, and there was only 1 other 600 plus series on the pair. Two of my teammates have since purchased LA NINA's, and they are bowling well with them. The thing I like most about the ball is the way it keeps the pins low for carry. I love the way this ball hits, and I think I will use it at the ABC this year. Generally, in my other two leagues, there is not enough oil to use the ball dull, so I had it polished out of curiosity. Now I notice that I can use it and still score well with it at the oily house by playing straighter up the boards, but it is also good on medium to dry lanes, sythetic or wood. On the drier conditions, I just move left and play inside. But I notice that I must stay agressive and keep up the speed, or there will be trouble. This is absolutely the smoothest rolling ball I have ever seen, and I almost never want to put it away, though I have made that mistake a couple of times, and it cost me. Another thing I particularly like about the ball is that it hits the pocket with awesome power, no matter what angle I come in from. Hahahaha....people that have watched me bowl for many years know that I'm more of a stroker with not much hand. But this ball makes me look like a cranker on oily conditions, when I use it dull. My overall opinion of this ball...IT IS AN ABSOLUTE MUST FOR ANY BOWLER WHO DOESN'T HAVE MUCH HAND, AND WANTS TO CARRY MORE STRIKES!! I recommend this ball for anyone who wants to get better carry, and create more area on the lane. My final comment: I have read all of the reviews of this ball over the last few months, and I think the ball is much more versatile than most of them give it credit for. I have lot's of Brunswick stuff, and some Storm balls also, but I'm probably going to buy more Storm in the immediate future...in particular the EL NINO 2000. Good bowling to everyone!!!