Ball NPS Score: 100.00
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Track continues the success of the Heat bowling ball line with the Track Ultra Heat. This ball is ideal for drier lane conditions and uses a stronger hybrid coverstock to offer more mid lane traction opening it up to a larger variety of lane patterns. This is all achieved with the combination of the DR-6 Hybrid coverstock and Modified Tri-Core. The Dr-6 Hybrid is considerably stronger than the coverstocks on previous balls in this line. With the 500/1000 grit polish finish this cover will produce length with a downlane motion and is ideal for medium oil conditions. The Modified Tri-Core is a nod to the original Heat core with the same RG but a lower flare potential to accommodate the modern stronger covers.

Color: Orange/Red/Yellow
Coverstock: DR-6 Hybrid
Core: Modified Tri-Core
Finish: 500/1000 Abralon Polished w/ Powerhouse Factory Finish Polish
RG: 2.50**
Differential: .038**
** RG and Diff are based off of 15 lb. balls
Reaction: Length with Strong Backend
Recommended Lane Condition: Medium Oil

http://tamerbowling.com/track-ultra-heat-bowling-ball-review/

Excerpt:
The bottom line with the Track Ultra Heat is that it has a sweet, versatile roll. The simple but successful core shape is a great one to have in the bag and with this hybrid cover, it will offer a ball that can be used on many medium conditions, both house and sport. We didn’t get a chance to test on sport but we’ve seen this core before so no doubt the shape will make sense. The out of box cover may come in to play as the lanes breakdown but with some surface, this ball could be a go to even on fresh medium conditions.