Using -ab 2

	-ad 4	-ad 16	-ad 64
6x final resolution	3s, 11111 bytes	3s, 11111 bytes	3s, 11111 bytes
8x final resolution	3s, 11111 bytes	3s, 11111 bytes	3s, 11111 bytes
12x final resolution	3s, 11111 bytes	3s, 11111 bytes	3s, 11111 bytes