Just caught this...
....and yes it can be a pain in the ass. Especially for newer co-pilots.
What you described is exactly what legacy Cobra pilots have been doing since forever. Newer Whiskeys w/ HDTS birds and Zulus can cue based off a LOS from the DDM/NDM (our version of HMDs) and put the TSS/NTSU FLIR and/or turret in the vicinity of the target/contact. Those systems also allow for more accurate boresighting compared to the previous mechanical HSS installed on old Whiskey Cobras. Which was never guaranteed to work, was inaccurate, and generally a pain in the ass to use. We don't use the FLIR to fly form either. The old whiskey HSS rail attached to the canopy however is a great tool to hit the front seater in the head with if he's being a jackass. Technique only. As you can see the Cobra while much sexier than the F models the Army flew into the 90s, it is an abortion of collected and retrofitted systems smashed into an airframe. While it may have saved money in the short term, it is no where near what the Y/Z H-1s or E model Apaches can do with the integration of their systems.
This is the reason that until the E model we never wanted to be the guy to sparkle or rope anything. I have no magnification because the IZLID is mounted on the gun. The gun automatically elevates for range.... so the IZLID is never where the TADS is looking. The E model fixes that finally and talk is that an eventual software upgrade will do it in the D as well so that we get accurate IZLID aligned to the TADS boresight. It will even allow me to do partial interrupt and shoot where it blanks the laser and adjusts for range to fire then comes back to alignment and laser on.