The Guru Master is the latest high performance hook-in-a-box release from Radical. It joins the original Guru and the Guru Mighty at this price point and it provides more total hook than either of these previous versions. This ball features a strong solid reactive coverstock wrapped around the same asymmetrical finger scoop / offset core design that was used in the previous Gurus. The Master’s cover comes out of the box finished with a 1500 SiaAir pad, helping it to create traction on the slickest oil patterns. Rev-challenged and speed-dominant bowlers will love the large amount of total hook they will see from this release.

Without question, we had our best reaction on our heavy oil test pattern. This ball creates so much hook so early that it needs a higher volume of oil concentrated in the front of the lane to be at its best. Stroker could stand farther left than he ever could on this pattern without having ...