Angels 44 = 44.000ft @ M0.95, on a CCRP aspect which is a stable longitudinal flight (check your vertical speed as selecting EL1 w/ Master Arm On will remove the FPM). Watch for your HSI to display 9nm from the TA and the GBU-12 should pick up the laser on its way towards the ground.
The AI JTAC won't give you laser designation on a Type 3 CAS as far as I know though, but even though its not realistic regarding procedures, you can paveway multiple times with 1 mile seperation between each release at such altitude. That way, at each impact, the JTAC will shift on other targets and you should be able to clear 3/4 targets on a single high altitude flyby.