Storms Lightning BlackOut is a pleasant surprise in the bowling bag. The Wrap AI Core features a RG of 2.53 and Diff of 0.0029 and is wrapped around the REX Pearl cover. The differential is the same as an iQ Tour but the RG is a lot higher but I believe they will work hand in hand with one another. I drilled mine 5.5 x 5 x 3 and when I first started to throw this ball it reminded me a lot of a iQ Tour Nano Pearl but it got through the front part of the lane easier. It almost appeared to me as the ball looking sluggish for the first 45 feet down the lane but it never missed the spot. It allows me to stay on top of it when I’m using urethane but it has enough versatility that I can open my angles up with it and hook it. I feel like this will be a great addition to the fans of the iQ Tour series who just want the ball to shape a little more down lane.