Hammer Black Widow Sting Review: The bowling ball drilling we used was a slow response drilling with pin under the bridge and the mass bias 2 inches off the thumbhole. The lane conditions were a 40 ft house pattern on AMF HPL lane surface. Test Results: The reaction we got was - Read More
@ Bowling Ball Reviews - Hammer Black Widow Sting
@ Bowling Ball Reviews - Hammer Black Widow Sting