i found the real PAT more difficult than CDP. on CDP, i was consistently getting 21-23 towards the later exams (the 10 test version), but on the real thing i got a 20. TFE was definitely tougher on the real thing. it more resembled DAT achiever's TFE, which is redonk for the most part. angles are harder than CDP.. i swear i was only absolutely sure of the angle order for like 3 of the 15 problems. and then hole punching, which i heard on here was way easier on the real thing, was actually harder!! i usually get 14-15 on CDP for these. on the real deal, there were a couple folds that i just could not figure out how they got it to fold that way, so that screwed me up, which made me kinda screw up cubes cus i was short on time, which left me with 6 minutes to do the entire pattern folding section (which was actually the easiest section believe it or not.. thank god). for the most part, id say CDP is the best resource to study for the PAT, but expect to see things that are more difficult (especially on the TFE section).