Loaded 05/10/09

Edited 22/02/10

When Bowlers Are Playing The Same Part Of The Lane This Area Of The Heads Begins To Dry Out As The Oil Is Picked Up And Carried Down The Lane. Eventually This Heavily Played Area Is Depleted Of Oil And The Previously Low Friction Area In the Heads Dries Up. This Transition Is Called "Breaking Down The Heads" Or "Head Breakdown."