- Extreme Envy

First Impressions
Released in September 2023, the Hammer Extreme Envy presents itself as a high-powered evolution within the manufacturer's high-performance line. Visually, the ball stands out with its striking black, red and white color scheme, which already suggests a certain aggressiveness on the shelf. Technically, this model is based on the proven asymmetric Envy CFI core (Carbon Fiber Infused), which was developed specifically to increase durability through the embedded carbon fibers and to optimize energy transfer to the pins. At 15 lbs, the core shows a low RG of 2.505, a high differential of 0.055 and an intermediate differential of 0.021. Even before the first shot, these numbers point to an extremely early revving ball with high flare potential. This core is combined with the aggressive Envy Solid coverstock. The surface is finished at the factory with a 500/2000 Siaair Micro Pad, which creates a very tacky texture. This combination of rough cover and strong asymmetric core should ensure that the ball builds enough traction even in heavy oil volume without losing too much energy in the heads. The feel of the surface suggests that this ball was designed primarily for heavy oil and is built to read the lane early.
Comparison
Placed directly alongside the original Hammer Envy, the Extreme Envy shows itself to be a consistent evolution aimed at minimizing the weaknesses of its predecessor. While the original Envy was known for its extremely early roll but occasionally had trouble retaining enough energy for the backend, the Extreme Envy should offer improved continuation through the pins thanks to the chemical adjustment of the surface. It sets itself clearly apart from the Hammer Envy Tour, which produces a more controlled, rounder motion and offers less overall hook. In the broader market, the Extreme Envy positions itself in the "super heavy oil" category. A fitting comparison here would be the Gem from Roto Grip, which shows a similarly dominant presence on the lane and is likewise built for very heavy oil. The Eternity Pi from Storm also plays in a comparable league, though the Extreme Envy, with its CFI core, is likely to show a somewhat different character in the way it releases energy at the pin deck. Compared to symmetric solid balls such as the Phaze II from Storm, the Extreme Envy moves considerably earlier and covers more boards, which makes it the better choice when symmetric cores reach their limits and can no longer create enough friction. It thus serves as the strongest asymmetric ball in the Hammer lineup at the time of its release.
On the Lanes
The ideal scenario for the Hammer Extreme Envy is clearly fresh oil with high oil volume. Because of its strong surface texture and its core numbers, the ball needs plenty of oil in the heads and through the midlane so it doesn't burn up its energy too early. It works excellently as the first ball out of the bag in league play or tournaments on long patterns or very generous house shots. If you throw the ball fast, you'll benefit from the fact that the ball slows down reliably despite the speed and starts its hook. For bowlers with lower speed or very high rev rates, on the other hand, the ball could be too aggressive unless they're playing on extremely heavy oil. Once the transition sets in and the heads start to dry up, you should consider switching to a ball with a shinier surface or a higher RG, since the Extreme Envy could otherwise lose energy too early, which would hurt your carry. The ball motion can be described as strongly arcing with a powerful move into the pocket, and it compensates well for mistakes in the release through its traction, as long as there is enough oil present. It is a specialist for traction rather than for maximum backend angle, which makes it a reliable tool for controlling the pocket when other balls are sliding.