Dale:
The only thing I am implying is that you have one heck of a bow there, and that most of the Switchback speeds I've been hearing about on the various forums seem to be more like

29/70/400gr. at about 285 or so.

It seems like you have a Switchback that is shooting Allegiance speeds, pretty much. If you have one like that, then obviously the speed difference between them is not very important. If you have one more like the typical Switchback speeds being posted, then the speed difference may or may not be important enough to consider, depending on your point of view.

There is a thread on AT about a Martin Shadowcat that is maybe 20 fps slower than the owner figures it should be. It is much easier to be happy with a bow like yours than one like the Shadowcat guy has.