Robert Fairchild is the proprietor at Fairchild. His services are in high demand so patience is the key word for using his services. But he does excellent work and is open to fueling tweaks. For instance, if you are using high ethanol infused fuel he will nudge the fueling spec a little extra rich. For me I can source non-ethanol fuel so he set my MFIP to the specification established by Bosch.
Brad