Question One is because I didn't want to have to chase a ship while trying to see the torpedoes the planes launched - no problem with that in most of my runs, because ALL the planes get shot down... so as noted in the vid, more planes, and the ship's crew will be dumber than a box of rocks... lol
Question Two is that the planes enter the scenario 8 clicks out, at 100 feet, flying at 132 knots, but as they approach, they climb in altitude, so I am thinking that they are trying to avoid flying into the flak??... I dunno... but they sure do burst into flames rather impressively... I'm getting ready to do another, with a slightly different set-up, and will try to post it shortly...