I have not compared the StillPoints rack with the GPA but with the Halcyonics. Actually, that is not really correct. I was able to put everything on StillPoints and only three components (amp, tt, and digital) on Halcyonics units. Everything on StillPoints greatly outperforms three pieces on Halcyonics. The sense of involvement in the music and lead edge were much improved. I do wonder what everything on Halcyonics would sound like but prices on Halcyonics have sored and they take up too much room.
There have been complaints about the acrylic shelves. I have a set of what StillPoints calls their OEM feet between my linestage and an acrylic shelf and this was a major improvement in soundstage precision and dynamics.
There have been complaints about the acrylic shelves. I have a set of what StillPoints calls their OEM feet between my linestage and an acrylic shelf and this was a major improvement in soundstage precision and dynamics.

