Using the IR guided Titan AA launcher, there is a delay until the lockon starts.
This is irrespective of stealth or Non-stealth versions.
This is not the case for the Gryphon or the older planes.
This delay, coupled with high speeds and high efficiency flares (too efficient IMHO) makes aforementioned Jets too difficult to fight from the ground thus ruining gameplay in koth gamemode.
Lockon should start immediately (same as with other planes) as new planes are no more stealthy to IR as the other jets.