Ill have to give 3.2.1 a try. Any place I can find these bin files you speak of? Also what makes those bins give you a higher hashrate versus the ones created by cgminer when you set the parameters yourself? Just curious so I can compare them objectively.
You can find Lantis Bin files here -
https://litecointalk.org/index.php?topic=6058.0These bins have been optimized for scrypt operations basically. Read the thread if you want to know more.