Superamerica F1A versus F1?

Perhaps someone could refresh my memory about the differences between the "F1A" system on the Superamerica and the "F1" system as fitted to contemporary (e.g. late model) 575M Maranello F1's or is it just that the control panel is cosmetically different? Thanks.
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Now I come to recall that the panel is functionally different too in that you pull the lever back to select "R" for reverse and it stays in that position until you move it forward again to the "1/D" position to select 1st gear, hence the arrows.

Were there any other changes to the hardware or TCU to further improve the shifting performance?

 

Just thought that I would reply to my old thread hear as Terry mentioned in another thread http://www.ferrarichat.com/forum/144964167-post23.html that the F1A transmission featured the improved algorithms that were included with the HGTC updates to the 575M. The implication being that base and HGTC Superamericas should both have the same shifting performance (e.g.180ms benchmark shifts).

P.S. I also dug this recall notice up that refers to the clutch sensor on the F1A equipped 612s (05-07). Recall Number: 08V214000


Ferrari recalls 612 Scaglietti with F1 transmission - Autoblog