$magic_boxes = array(0, 1, 2); // high, medium, low
$magic_boxes[0] = array(140, 140, 80, 80, 60, 60, 60, 60, 40, 40, 40, 40, 20, 20, 20, 20, 20);
$magic_boxes[1] = array(120, 80, 80, 80, 60, 60, 60, 60, 40, 40, 40, 40, 20, 20, 20, 20, 20, 20);
$magic_boxes[2] = array(60, 60, 60, 60, 60, 60, 60, 40, 40, 40, 40, 40, 40, 40, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20);
shuffle($magic_boxes);shuffle($magic_boxes);shuffle($magic_boxes);shuffle($magic_boxes);shuffle($magic_boxes);shuffle($magic_boxes);
$j = mt_rand(0,2);
for($i=count($magic_boxes[$j]);$i < 49; $i++) $magic_boxes[$j][$i] = 0;
shuffle($magic_boxes[$j]); // times 10000
I believe net gain on each set is like -20.
None.