Update
Updating database... Please wait.
Monday 1 January 2018 at 21:50
Quoted from gliebig:I need to tame down my shaker. Seems lime it has gotten stronger and rattles the shit out of the game
Search ebay: DC 6V/12V/24V/28V 3A PWM Motor Speed Regulator Controller Switch
You need to add one of those in line and you can adjust it to whatever amount of shake you desire....
Source: http://pinside.com/pinball/forum/topic/metallica-owners-thread/page/247#post-4153334