But the Grace SpaceBar is well worth the money and I can accurately set up an ORTF pair in less than 30 seconds.
Not to beat a dead horse here, but my experience with the spacebar is far different. While it does provide accuracy, it is never a simple 30 second setup.
Ignoring running the cables - I have certainly mounted the mics. accurately on a SpaceBar in about 30-seconds.
I once arrived too close to start time and I managed to do the complete set-up and start recording in about one minute total using the SpaceBar. That's a pair of microphones accurately set to ORTF in the SpaceBar on a floor stand and two cables plugged into a Nagra VI and recording.