The Gargraves standard gauge track uses 0-27 size rails rather than standard 0 size rails, which limits what trains can be run on it.
Rumor has it that Menuards is improving the quality of their traditional tubular 0 gauge track. I recommend checking that out. Tooling up to make 0 gauge track would be too expensive for USA Track to consider. Plus, we are in the "business" of making track to promote Standard Gauge, not to make a profit (there is none). I have too many other interests to spend time making 0 gauge track!
The Ross Custom Switches standard gauge switches were designed in consultation with a committee of SGMA members. They feature a movable frog, and are very reliable. Derailments are essentially nonexistent. Expensive, but worth every penny.
Kirk Lindvig, USA Track LLC