You should try to improve your very SH'ed game and pick you're spots to play very SH'ed. There's a ton of money to be made playing HU was a 80/10 guy if everyone else leaves the table even if it's just for 10-15 hands. However, when ever I end up HU vs. someone half decent I just leave.
Some links on HU:
http://forumserver.twoplustwo.com/remlin...mp;Main=3753827
http://forumserver.twoplustwo.com/remlin...mp;Main=3775281
http://forumserver.twoplustwo.com/showfl...mp;Main=4198741