When you lower the bridge, do you also have to use something to block the other side of the tremolo system as well? I know someone who lowered the bridge on their guitar so the bridge rested on the back of the guitar, but he also put a piece of wood on the other side of the tremolo system which made it completely stationary. Is this necessary? Also, when you lower the bridge do you have to use heavier gauge strings (heavier than .009, .011, etc...) or can you still get away with using 9's? I ask because I know SRV's set up involved a much heavier gauge string than I am accustomed to using.