I spoke with a pilot about LMC. It seems to mostly work as intended. So what you do is find a spot you want to hold your tads crosshairs on and press LMC once and don’t touch the joysticks. This will hold tads completely stable on target while thhe aircraft moves.
if you need to readjust your aim you can either try to finesse tads by doing incremental moves and counter moves, or you can disable LMC, quickly readjust your aim, and then reactivate LMC.
You can see what I mean here:
LMC can also be used to hold your aim on a moving target like a convoy by giving it a very slight press in the direction of the target movement. But to reset the LMC movement just deactivate and reactivate
Brads an Apache pilot. In this thread he explains that crabbing should be present but it’s excessive currently. He details it out and gives a fun diagram on forces acting upon the aircraft
https://forum.dcs.world/topic/296438-advice-on-aerodynamic-trim/?do=findComment&comment=4924727
S. Low's post in Is there a way to use LMC without the drift? was marked as the answer