- RPM Swirl

First Impressions
With the RPM Swirl, AMF brings a fascinating new development to the market that impresses above all with its exceptional length and late reaction. Inside works the dynamic RPM Core, which with a 2.52 RG and a 0.045 differential ensures very clean motion through the front sections of the lane. The pearl reactive cover is specifically tuned to store the ball's energy extremely efficiently. The surface with its polished finish supports this quality massively, 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 primarily designed for later and sharper direction changes. The technical match between core and cover is extremely harmonious and purposeful here.
Comparison
Comparing the RPM Swirl to the Roto Grip Hustle, the glaring differences in backend reaction are immediately apparent. The Roto Grip Hustle tends to read a bit earlier, while the RPM Swirl holds its energy a decisive fraction longer and then reacts noticeably more aggressively to the dry area. That quality makes it the perfect complement in an arsenal when the Hustle starts losing energy in the pocket or entering too flat. Although both balls are aimed at lighter oil patterns, the RPM Swirl offers a noticeably more dynamic angle. It's the ideal solution for situations in which the Hustle no longer develops enough drive, since it generates the necessary entry angle.
On the Lanes
This ball shows its greatest strength once the lane has already 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 delivers maximum, explosive carry. As 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 excellently 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 late stages of a tournament.