I used shep. Sat in the lobby about 1.5hrs before the written and practiced drawing the tables over and over. Walked in and got a 73%. Pass is a Pass. Had a family member get really sick where I was having to leave town so decided to just drive over and try it. Half the test is knowledge you already know, can figure out by looking at the problem, or take a very educated guess. The figures you draw as created by shep get you the rest. I was completely happy and out the door very quickly.