^I have not noticed a faster ride on Apoc recently, however the ride does seem a little more rough laterally. Not a problem for me, it's a wood coaster and I expect that. On my visits, however, they didn't even stop me at the pre-show anymore, and I just walked through to the station. Fine with me considering they mostly gutted a lot of the pre-show themeing after re-naming the ride anyway.
Airtime non-virgin here, also a rider of coasters around the globe. Airtime isn't the right word for Superman. It's definitely more "weightlessness" than anything. When the ride faced forward I never felt it at all. Now I atleast feel it and although it's not like a drop tower or anything it's much more evident to me, especially in the back seats. The OTSR's don't restrict the feeling at all, IMO.
SoCal may not have airtime, but there's pretty much no ride I've been on that even compares or provides the sensations of X2 from the second you crest the lift hill, to the backflip before the turnaround. That entire sequence is practically incomparable (except for the 4D brother on the other side of the planet).
I would *guess* Deja Vu will be all of gone next weekend.