The PAT is important or it wouldn't be on the test. The reason so many applicants don't score above 20 is because of the lack of practice problems available. I searched Amazon, B&N, and other retailers to find as many practice problems as possible, and I'm sorry to report that I found hardly any currently available. If anybody has any leads for me, I'd appreciate it. All I was able to find was Kaplan, TopScore, and Barrons. Kaplan has 90 practice problems, 15 for each section of the PAT and then 3 practice tests. Barron's has some (I'm not sure on the exact amount) but from what I can tell, it didn't feel like enough to adequately prepare me.
Fortunately, a book will be released early in 2004 that will contain over 500 PAT practice problems. I'm sure the more practice we get looking at angles, hole punching, paper folding, etc. the better the chance at scoring well on the real deal. According to Kaplan, you can miss almost 50% of the PAT problems (that's 45 out of 90) and still score a 17 or 18! Imagine if you could get 10 to 15 more correct (that's only 1.5 to 3 more per section)! You'd probably score close to a 20.