Here' the scenario: I find a target with my TGP, lock on to it, and press TMS right short, to make it a mark point, then move the rotary knob to mark point, I then have mark point 'A' on my HUD, all well and good.
I then find another target with my TGP and press TMS up long to make it SPI, I then press TMS down long to make it SPI to steerpoint,, then if I press china hat long aft, this should slave my TGP to steerpoint, but this does not happen, it stays on the mark point, what am I doing wrong, thanks in advance.