Again, did you adjust for the change in default camber. If you kept your setup as-is, your old setup will have about .5 more negative camber. If you didn't adjust for that, the handling will indeed change.
Other than camber though, nothing has changed in how the cars handle. Nothing. If you're still feeling a change after camber adjustments it is due to the engines or you're overcooking your tires, or it's all in your head.