you can play with speed/atk speed/mdef/pdef xD and if you need to put maximum clarity or other you can take out atk speed.
And atk speed it's not really useless ..
cause you can.
You can play without atk speed if you need one more important then atk speed ofc, but with mithril bracelet you can wear 4 talismans at once , so you have enough slots.
http://www.maxcheaters.com/forum/index.php?topic=187111.60
check this .. we discussed a bit about this
i'd go for +3str+2con-5 dex and talisman for speed/atk speed all the time on you