Why do digital gauges reading to within +/- 0.5psi not good enough?
... you asked ... so bear with me
its just the rounding error that messes with my long term data sets ... and the error bars are much smaller ... eg 32 left and 32 right rears could actually be 31.5 left and 32.5 right which is a 3.1% pressure delta in suspension/grip/tirecooling performance across the twin 80sqin footprints that one day could mean the difference between holding a high speed turn or spinning out (of course similar considerations for the 36/36 fronts)
in a slalom run i can say for sure the overall time result is different for 34/30 vs 37/33 cold pressures (using conti ecs compound)
our mfa1 chassis are quite well tuned and its perfect and sensitive when balanced
on a separate thread ...
its the precision (not accuracy as thats just a bias term) in the pressure data over time that brings out things like bead leaks, treadwear/alignment issues, suspension consistency, tiny punctures, etc etc ... and so pressures are logged regularly together with a thermocouple probe for temperature references
as it is, there are a lot of variables for long term asset state monitoring, so being able to closely maintain one variable and make it a controlled constant helps make things a tad easier
similarly we use the tick marks on the dip stick to observe actual oil loss volume and hence engine tolerance changes ... or measuring the antifreeze mixture fills at 5mL increments for coolant loss rate and thus coolant loop condition checks ... or 0.1mm treadwear tracking for suspension/alignment monitoring ... granularity has its uses
i am a little cuckoo but thats just me ay?