superb!

although raises a slightly different question - once you hit the maximum boost of the map sensor (i.e. 4.9 volts for example) - is it still possible to map the car past this and use the other factors, act, revs, etc to kind of estimate past this - with a known maximum boost limit?

i.e. after 15psi the map sensor just reads 4.9 volts... but you want to run 20psi.. are you saying you could do this but the management wouldnt see any change in boost?
so that to multiply the variables up to get the fuel there, you would have to increase the other values in the table as it wont have an additional mutliplication factor from the map sensor?

how does the frequency based OFAC sensor read in the tables then? would this be similar in that a maximum frequency would be seen?

sorry for all the questions, Im just on the edge of getting how it basically works I think