Just took form 5 this morning. I won't know my scores for a few weeks so I'll keep you guys updated. But this being my second time taking it I felt way more confident going in and even more confident leaving. I had form 3 before and scored a 6/6/6 53. Everyone says form 5 is the hardest, but I disagree. I didn't see too much of a difference between the two, so don't get discouraged right before the test based on what test form you get.
What I studied:
Pretty much every bit study material found on this forum- Probably the most helpful stuff when it came to aero and nautical info. Know the marine gouge and atrickpays study guide.
arco 8th edition- Lots of good questions for math and mechanical to get your timing down (skip the reading unless you have time)
barrons- gives you two full tests, worth the money. All sections are pretty good, the actual test is easier so its a great study prep.
I also took a aviation history class at my school and my father was a f-4 pilot so I had a good back ground going in.
I'll check back if anyone has any questions.