Radical Evil Eye: The Drilling Chameleon That Reads Fresh Oil Like Few Symmetrical Balls Can
You're standing at the pro shop counter on league night, and the lanes are buttered with fresh oil. Your usual symmetrical piece isn't cutting it—it's either too lazy through the fronts or too weak off the friction. The driller leans in and says: "What if you could have one core that lets you dial in anywhere from a smooth continuous motion to an aggressive forward hook, depending on how we drill it?"
Performance
The Evil Eye pairs a distinctive super-symmetrical core with the HK22C Solid coverstock (500/1500 Siaair finish) to deliver a slow, predictable roll through the fronts and an aggressive, confident turn off friction. What sets it apart is that the core's unique geometry—featuring a prominent front "axe" mass bias and rear fins—lets drillers radically alter its post-drilled intermediate differential (from 0.009 to 0.023) without changing the base name or coverstock, making it genuinely versatile across rev rates and arm speeds. Reviewers consistently report strong, continuous hook with controlled flare and no overreaction, though one reviewer noted it can be sensitive to speed and ball trajectory adjustments on fresh house shots, and it reads the friction decisively enough that bowlers transitioning to burnt-up lanes will likely need a complementary weaker piece.
Pros
- Unique post-drill intermediate differential range (0.009–0.023) allows one core to function as multiple reaction profiles
- HK22C Solid coverstock hooks aggressively on friction while delivering predictable, slow front-end motion
- Strong, continuous hook even when missing the friction line, with controlled flare and no wild overreaction
- Works across a wide range of speeds and rev rates when drilled to match the bowler's style
Cons
- Sensitive to small adjustments in ball speed and angle on fresh house shots—requires practice to dial in
- Not suited for heavily worn or transitioned lanes; will outlast the lane's oil quickly
- Requires active engagement with layout options and driller consultation; not a plug-and-play pick
Who Should Buy This
- Bowlers on fresh or heavier-oil patterns who want one core drilled multiple ways for different situations
- Players wanting a strong symmetrical alternative to asymmetric aggressive pieces
- Speed-dominant bowlers and those with lower rev rates, if drilled for their profile using Radical's layout sheet
- League and tournament bowlers seeking a dependable, controllable strong ball with proven pin action
Who Should Skip This
- Bowlers who need a weaker ball for heavily transitioned or burnt lanes—this is a fresh-oil specialist
- Players who prefer simplicity over drilling versatility; the core's drilling-dependent nature requires intentionality
- Those uncomfortable with consulting a layout sheet or working closely with a driller to match their arm speed
Buying Tips
Radical includes a detailed layout sheet in the box with six suggested drilling options across three categories (performance-enhanced, performance control, symmetrical continuous). Work with your driller to choose a layout that matches your typical ball speed and rev rate; reviewers noted that low-rev players benefit from control layouts (e.g., layout E), while power players can use maximum performance layouts (e.g., layout A) to maximize the core's front-mass bite. The factory finish of 500/1500 Siaair is dull and textured; one reviewer plans to keep it as-is out of the box for maximum traction on fresh oil, but Abralon pads are recommended if you want to adjust surface reactivity later.
Verdict
The Evil Eye is a scientifically ambitious symmetrical ball that delivers on its promise: real, measurable versatility through intelligent core geometry and drilling strategy. If you bowl regularly on fresh or long-oil patterns and are willing to partner with your driller to dial in the right layout, this is a standout piece that outperforms typical symmetrical balls and offers genuine value in avoiding multiple similar cores. On worn lanes, it will show its limits; it's not a do-it-all ball, but within its wheelhouse, it's predictable and strong.
Related Reviews
Specs
| Weight | RG | Differential | Mass Bias |
|---|---|---|---|
| 16 lb | 2.505 | 0.041 | -- |
| 15 lb | 2.495 | 0.046 | -- |
| 14 lb | 2.512 | 0.046 | -- |
| 13 lb | 2.574 | 0.04 | -- |
| 12 lb | 2.597 | 0.04 | -- |
FAQ
How is the Evil Eye different from a standard symmetrical ball?
The Evil Eye's super-symmetrical core features a prominent front "axe" mass bias and rear fins that allow post-drill intermediate differentials to range from 0.009 to 0.023—the largest range for any symmetrical ball. This means a driller can emphasize or de-emphasize that front mass by choosing different layouts, effectively letting one core deliver symmetrical continuous motion or aggressive asymmetrical-like performance depending on where the thumb goes.
Should I drill this as symmetrical or asymmetrical?
Radical provides six layout options across three categories. Reviewers found that low-rev, speed-dominant players benefit from symmetrical/control drillings (layout E) that smooth out the reaction, while power players can use maximum-performance layouts (layout A) that hit the front mass for aggressive backend motion. Work with your driller and consult the layout sheet in the box to match your arm speed and rev rate.
How does it compare to my current symmetrical ball?
Reviewers consistently noted the Evil Eye is stronger and more continuous front-to-back than comparable symmetrical pieces; one reviewer favorably compared it as a blend between a smooth benchmark ball (like the Pulse) and a more aggressive workhouse (like the GB5). It reads the lane and responds to friction more decisively than typical symmetrical balls, which is a strength on fresh oil but means you'll need a weaker complement for burnt lanes.
What lane conditions is this ball made for?
The Evil Eye is designed for heavier-oil conditions, longer oil patterns, and fresh oil. It has a solid reactive coverstock with a dull finish (500/1500 Siaair) that maximizes traction. Multiple reviewers recommended it specifically for fresh or heavily oiled lanes; once the fronts start to hook and burn up, you'll want a weaker piece in your bag.
Will this work for lower-rev or speed-dominant bowlers?
Yes—the entire point of the layout sheet is that different drilling options are optimized for different arm speeds. One reviewer who is speed-dominant (normally 7.2–7.5 MPH at the pro shop) found the Evil Eye stable and controlled with tight flaring. A low-rev player should focus on control layouts; a power player can use performance layouts to maximize the core's aggressive bite.
Does it overreact, or is the hook predictable?
Reviewers consistently described the hook as strong but controlled, with no wild overreaction. One reviewer specifically noted the tight, stable flaring and predictable motion through the fronts, even when missing the friction line. The motion is described as continuous and usable rather than erratic, though it is aggressive and responsive to friction.