So to recap, the correct way to use Counter Barrage is now to aim it perpendicular to the enemy position. Because it spends time rotating and tracks through the fog of war, the barrage won't start until it rotates enough to be able to fire at them, by which point their barrage would have finished and their retreat order would have been given. Counter Barrage will then attack them at where they retreated to since fog of war doesn't affect it..
Because of the delay before the counter barrage, the Allied team can never be sure if the LeFH is rotating or if counter barrage is even active, meaning the only way to truly protect your Arty is to never stop moving.
...And the balance team is fine with this.
Not really after some small testing.
Road to Kharkov, so it's a linear map.
Having the LeFH offcenter by °90 and °180 against a Katyusha which barrages and then retreated (barrage + shift command click back in base) made the LEFH miss completely, while having it dead center on the Katyusha meant that it actually shoot back before it move from it's space.
Considering CB can trigger on anything, not sure you want it to take so much time to turn around.
I'm sure you will sometimes get lucky on wide maps and catch someone by surprise but i wouldn't rely on this technique at all.