I plan to swap out the stock bridge on my SG Faded T with a TonePros. However, after communicating with customer service I learned that I'll have two options after NAMM 2018: ZAMAK (a zinc alloy and their current standard) or aluminum.
I'm not foolish enough to ask "which would sound better" because that would be entirely subjective. But I wonder if anyone here has experience with different bridge materials who could say something about qualitative differences in tone between heavier and lighter bridge metals. Also, does heavier lead to more sustain, or is the issue more complicated?