The crank sensor can be used in combination with a similar camshaft position sensor to monitor the relationship between the pistons and valves in the engine, which is particularly important in engines with variable valve timing.
Monsters of Rock also competed the following year in the Ultimate Music Challenge 3: Battle of the Cover Bands at Viejas Casino in Alpine, California on July 8, 2009 winning second place and a $8,000 cash prize.
In December of 2011, Metallica celebrated their 30th anniversary with a four-night stand in their hometown of San Francisco. They could have easily packed a stadium many times over to commemorate the occasion, but they opted to play the Fillmore, which seats just over 1,000 people.