There are some problems that you wouldn't expect to see in "modern" LSATs (the calendaring question from PT 7 comes to my mind), and some problems are rather unusual. I think that LR questions from June2007 and onward are more difficult though.
... my first and second try (June 2017 and February 2018) did ... for every questions in the June2007 Prep Test: http://7sage.com ... /lesson/preptest-june-2007-video-explanations-for-all-questions/