More volume and less pick noise.
The Gold Series is the premium line offered by Gravity Picks. The material is a high grade thermoplastic which is amazingly wear-resistant. There is a sizable difference in volume when compared with a normal pick, enabling you to cut through the mix.
I've been using acrylic gravity picks for a few years. I decided to try out one of the gold series picks and I absolutely love them. I've only used it on acoustic gigs so far. But I have practiced at home with it and they have an extremely unique feel and dynamic range. I would highly recommend picking one up, or multiple if you have the means.