HARD, HARD, HARD!!!!!!!! They love putting us through our paces. I spent more time studying for all the other sections of the PAT, and forgot about this one.
Best way to attack is prosses of elimination... and guess when required ... remember no points are taken away for a wrong answer!!! and if when your practicing you still cannot get the hang of it, simply make sure to leave the section for the end... (sucks I know but what can we do.😎)
If you can do the achiever PAT and score in the upper teens, you will be totally fine on the DAT. I found the Achiever PAT to be harder in every section with the exception of the angle ranking (which was about the same). I was scoring between 18-19 on achiever and got a 24 on the DAT (finished the section with 9 minutes to spare). Kaplan is WAY easier than the real thing, and not the best preparation for it. Good luck.
Oh and yes I know what you mean by the lines not being straight on Achiever. The DAT is NOT like that. It is much more visually friendly.