Hey there, I sat the UMAT last year and I found that the level of difficulty for section 3 was quite similar to MedEntry, and the same techniques can be used in the actual exam. From what I know, section 3 doesn't really ever change in the sense that the same patterns are used by ACER every year, whereas sections 1 and 2 often change from year to year, as ACER decides to change the emphasis of their questions in those 2 sections. From what I can recall, section 1 wasn't harder nor easier than MedEntry, but there were a few type of questions I hadn't seen in the MedEntry exams and drills so for those ones you just have to figure them out on the day. However section 1 definitely took me the longest to complete by far. Overall my advice to you would be to try and get as quick as possible at section 3 because this is the section that can be prepared for the most, and also do your best to avoid spending too much time for section 2 as well, as often it will come down to 2 answer options. This way you can leave the most time for section 1, which most people find takes the most time to finish. Hope I answered your questions and best of luck for the UMAT!