Loose bridge give nice tone.

[splund]

I recently bought a second hand Cort GB-PJ bass, I like it
very much but I felt the need to change the flimsy bridge for a
more sturdy one. When I removed the old one, I noticed the fixing
screws were not that tight. After fitting the new heavier bridge
the bass seemed to have lost a bit of its woody resonance. I was just
about to put the old bridge back on when I remembered the loose screws
when I removed it. I slackened the new screws off just a tiny smidgen, about
1/8 turn, and the tone returned to normal.

Is it possible I imagined this? I have only had the bass for about a week
and im still quite new to playing, the difference in tone was very slight.
Anyone else noticed something similar?

Bob