Question on fleep sounds

[LeanderQuest]

Fleep sounds are awesome because they sound realistic. However, they are a bit too loud for my taste. Can you lower the volume for the entire table at once? Or do you have to select the parts that are too loud manually?
Normally, I select all ball release sounds, then left flipper, right flipper, slingshots and especially bumpers.

The scripts lets you change mechanical sounds, but only that involves the rolling of the balls etc.

[LeanderQuest]

This is the real machine. The music is very loud...no way too loud bumpers:
 

I don't know a table is designed to match the ROM...when I play a table with default settings the designers meant them to be and crank up the ROM to 31 volume (the maximum) it sounds like this...the mechanical sounds are way too loud.

 

Please help. What is wrong with my ROM or what am I missing?