Ok, a little background.
I currently have two camera bodies and will soon have a third. All three are Canon (300D,350D,550D, so crop bodies) but two of them have had hardware modifications done to them.
I have been playing with the idea of doing some comparison shots to show how the mods effect how much light the sensor gets, but then I realized I was not sure if exposure was consistent across different models.
So that is my basic question to everyone. If I plug the same manual settings in the with identical lens/lighting into multiple models of crop bodies, if they were stock bodies, could I expect identically exposed results? Or does the behavior of the sensor render the manual settings meaningless on any body other then the one you are metering them for?