Ahem, er, I'm still not sure as to the purpose of the pic exchange ? I have used this 4 gauge setup before and know how to setup and use, and set the baffles to restrict air flow; what I'm suggesting - which requires no need for pics - is that the dial mechanisms are not as reliable as the fluid manometer type gauges , principally because:
1. Dials convert pressure to a mechanical reading thus involving some potential loss of accuracy/consistency and thus requires calibration
2. The dials need to be calibrated and my impression is that on expensive dial setup , each dial (x4) will be individually certified calibrated whereas cheaper eBay type items will not. This means that whilst all needle indicators APPEAR to be reading the same value, these readings would not take into account variations in calibration , resulting in cheap eBay gauges being way off despite all appearing to read the same value
3. Manometers, on the other hand, use direct vacuum to fluid mechanics and thus are more "reliable" - notwithstanding potential for errors due to manufacturing processes - tube diameters, baffle bores, etc. But the simplicity of manometers and the workings of vacuums and fluid are more in concert with each other when compared to a mechanical movement (dials) induced through vacuum ??
So quite why pics are needed for this - I simply dont know - but if you guys insist then I can post a pic of gauges at zero or gauges all at different readings - or the same - but that achieves very little to my simple mind ???
EDIT: I've thought of one good example of pics - one pic of a manometer on all 4 carbs, and one pic of 4 gauges on the same carbs without any adjustment after removing the manometer....is that what you mean? If so I cant do this because I aint got a manometer which was the whole point of this thread