I switched the bridge on my bass from a Leo Quan Badass I to an Aluminum Hipshot A style. The aluminum Hipshot was easily only 1/3rd the mass of the Leo Quan. (This pics in my sig post are from before that transplant)
The sound (both unplugged and amplified) didn't change dramatically from the Leo Quan to the aluminum Hipshot A. While the tone change wasn't dramatic, it was there. (Standard confirmation bias disclaimer goes here. However, I've got more than 8 years with this bass being my only real player, so my ears are used to the sound and I think I can objectively say that the tone did change a bit. Same strings before and after swap btw)
The Aluminum Hipshot A did give the bass a touch more top end. You could view this as either emphasizing the highs, or deemphasizing the lows and mids. The ultimate take-away of it though is that it did NOT make the tone thin, lifeless, etc. My bass still sounds essentially like my bass. Like Underworld said, this is only one piece of the recipe/instrument.
I'd bet good money that the Hipshot A-style is more solidly engineered than the stock bridge on your Cort, regardless of materials.
My shoulder's happy with my bass's slightly lighter weight too.
Take care,
-4ST