Bridge adjusters and sound for Arco

[Eduardo Barbosa]

Hi Guys,
I was wondering if anyone have ever noticed any difference in sound when installing aluminum bridge adjusters for arco playing only.
I am the only one that has adjusters in the section. The other 4 basses have solid bridges. One of my basses has the Kolstein bridge with the wooden adjusters. And it seems fine. My other bass has aluminum adjusters. I never cared because that is my "jazz" bass. But occasionally I'll take it to an Orchestra rehearsal and I've been wondering if the brightness that I am hearing is just more noticeable when playing arco.
Thank you.