FYI a page from the NATOPS which perfectly illustrates Wingnut172N's note on the AoA indexer.
I also added a zipfile with a new Virtavia_Skyhawk.cab : Fixes the reversed colors on the AOA indexer, makes sure the AOA lights are off when wheels touch the ground and increased the bullseye AOA a bit (was 7.0-8.0, now 9.0-11.0). This is still ~8 degs lower than what the NATOPS says but if I setup the indexer with the RW values you would have an uncomfortably high nose pitch coming in to land and not be able to see the runway/deck. I believe it is a common issue in FSX, I have seen many planes with FSX indicated AOA lower than RW AOA. There are gauges that use a correction factor to visually align the AOA dial gauge with the indexer lights (in case of the Virtavia Skyhawk that requires updating the MDL embedded gauge code).
BTW: I also discovered that Virtavia_Skyhawk!AntiSkid causes key events flooding when airborne, so I blocked it in my panel.cfg:
//gauge37=Virtavia_Skyhawk!AntiSkid, 0,0,1,1 //blocked due to key events flooding