- X-Calibur Blue

First Impressions
With the X-Calibur Blue, NU Line brings a fascinating new development to the market that stands out above all for its exceptional length and late reaction. Inside sits the dynamic Calibur Asymmetric core, which with a 2.49 RG and a 0.055 differential ensures a very clean motion through the front part of the lane. The pearl reactive cover is specifically tuned to store the ball's energy extremely efficiently. The surface, with a polished finish, massively supports this characteristic by letting the ball glide effortlessly through the heads without building friction early. Visually it's a real eye-catcher, and it immediately conveys that this model was designed primarily for later, sharper direction changes. The technical match between core and cover is extremely harmonious and purposeful here.
Comparison
Comparing the X-Calibur Blue to the Storm AstroPhysiX, the striking differences in backend reaction are immediately apparent. The Storm AstroPhysiX tends to read a bit earlier, while the X-Calibur Blue holds its energy a decisive fraction longer and then reacts noticeably more aggressively to the dry area. That characteristic makes it the perfect complement in your arsenal when the AstroPhysiX starts losing energy in the pocket or entering too flat. Although both balls are aimed at lighter oil patterns, the X-Calibur Blue offers a noticeably more dynamic angle. It's the ideal solution for situations in which the AstroPhysiX no longer generates enough drive, since it creates the necessary entry angle.
On the Lanes
This ball shows its greatest strength once the lane has been played on a bit and the transition has clearly set in. It needs a certain amount of friction in the backend to develop its characteristic hook, which produces maximum, explosive carry. When the boards in the front part of the lane dry up, it lets you systematically move further inside and attack the pocket from a much deeper angle. It works very well on medium to dry conditions and is an excellent choice if you're looking for a clean, responsive surface. With its forgiving nature on shots missed to the outside, it should keep your scores stable at a very high level even in the later stages of a tournament.