to AOX: i've reached 6 hours on "attackers"

after lots of discussion with AOX about chesstempo and how to gain real improvement, i offered to be a guinea pig on visualization practices.

he said the first step is to get about 6 hours of practice in for "attackers" on chessgym.net

i just surpassed 6 hours today.  i averaged about 32 pieces of minute.

AOX - now what?  should i be trying other visualization exercises that you list on your blog?