"As of 1 January 2009, in addition to above checks, an new device will also be used to check for the presence of boosters and tuners, as well as a lower tolerance for VOCs, and checking stretch marks of the rubber (expansion, dome effect, etc.)." - Adham Sharara
How do we test "expansion" and "dome effect"? Do the players have to remove the rubber from the blade to have this tested?



