Well, I guess after reading all 4 pages I can put my 2 cents in.
I did the swap last year and to be honest I didn't really notice much of a difference, probably because I save most of my aggressive riding for the track. However my wife made a comment after we got back from a ride that gives credence to how good the swap is.
When leaving our house to go for a ride we go across a set of RR tracks, at the end of the ride my wife said that her rear usually comes up a few inches off the seat. However, after I did the swap she said that her rear stayed planted and that her overall impression was that the back end didn't bounce around as much as before.
So, if wifey's happy, then I'm happy.
Now I've just got to make the rear seat more comfortable and move her footpegs forward, she complains that they're too far back and her legs are uncomfortable at the angle they are bent at.