Well, the only thing I don't like about the Stewart Warner is its not a full sweep gauge. From 40-60 lbs is only 2 ticks on the gauge. Not very accurate. If you notice the Auto-Meter is incremented with a tick per psi.

Either would work, but I did appreciate being able to hit a button to see what my peak fuel pressure was after a run rather than try to watch the shift light, oil pressure, boost, AFR, and sometimes the road And I know shit happens quicker in your car than in mine.