More testing of the new patch-the MAP value skews were just me mistyping stuff in the 2-bar configuration stuff. I re-did all that and tried again-MAP and Baro are within 1kpA, although as before-MAP never updates.

Unlike the version 1 patch, though, MAP and 2-bar MAP actually agree with each other very closely, so that part of the patch works. If we can get it updating the MAP value, it ought to be the trick!