I would tend to agree with unknown1. When the target is lost under the barrel we don't see it until it is at place in the sky instead of somewhere out of the trap house. This of course is a great way to raise your head to see that which you nmissed. The next thing you will hear is LOST.
When I was shooting doubles I was taught to look in the distance and get a land mark that I could see the first target between and then put my barrel to the left or right of it and put my barrel a little lower then the spot I would like to shoot my second target. You see the target in your vision approaching your barrel and start your move, move sidways, intercept, short track, pop it, and move over to the second bird which should be very close to the same level in the sky.
It worked well for the fellas who were advocates of the method. I was never a good doubles shooter I think my best score was a 95 or 96. Normally i shot in the middle 80's! I have seen lots of guys shoot 100's doing this method.
In Pita shooting the 1st man gets to call for a pair at each new station (if he chooses) so this method is not a perfect one for the lead off person on his first pair in ATA shooting. Jeff