What turntables do you use? Pictures would be nice as well :-)

[Juiced]

I would go for this one. It is the right choice. Additionally you can clean the residue of polishing by wiping with IPA and a cloth. That should improve the sound.

I found what was causing the brightness.
I've completely removed the inner and outer lip and now it sounds less bright.

I think I warped/damaged the lips because after the polish, they seemed uneven, and with the suction hold, all the records spinning look warped.

Even with the suction hold off there was still brightness, not until I had completely removed them.

 

[mtemur]

I found what was causing the brightness.
I've completely removed the inner and outer lip and now it sounds less bright.

I think I warped/damaged the lips because after the polish, they seemed uneven, and with the suction hold, all the records spinning look warped.

Even with the suction hold off there was still brightness, not until I had completely removed them.

IMHO it seems pretty hard to damage rubber lips by polishing. However clogging the tight vacuum lines with polishing compound seems more possible.

 

[Juiced]

IMHO it seems pretty hard to damage rubber lips by polishing. However clogging the tight vacuum lines with polishing compound seems more possible.

checked and cleaned before removing the inner and outer lips.
air lines were clean with no clogging.

i'll order a new set.