I got it back from the dealer after requesting a switch back to Map 1. It isn't running as well as I had hoped- still a little surge and hesitation and a little rough on the on/off transition.
The dealer said that the system updates from Aprilia automatically, like a Windows update, and wasn't too interested in talking about Version #'s.
So now I've had 3 maps- the way I first got it , which I believe was Map2 with the O2 sensors still enabled; Map 2 without sensors (disabled); and now Map 1 as it comes from Aprilia. I think that the first way ran best, but the differences are subtle and maybe I am getting oversensitive.
I think I'll run it like it is for a while and see.........
I don't like thinking that the only way to change anything is to change pipes as I like the stock pipes the way they are, I just want the bike to run better.