Yup 70. It's easy to overlook because the video is embedded at the bottom but well worth watching if you're looking for subtle hints at maximizing your technique.
I would strongly recommend you do a couple preptests from the 70's before you attempt to write the dec lsat. The 50's are not representative of what you'll see on test day.
You can look and see exactly what it includes... just look at your books to see what PT's they are and look at package to see what that includes. it has like 36-70 I believe for highest package
With everything said, I would be careful on the newer tests, especially of the PT 70+. The difficulty of the questions have been spread out so now it's very possible to see one of the toughest questions of the section early on say #12 or something.
I believe it's written on here, deep in one of the discussions. Is what you mean by "recent" the ones with the Comparative Passages? I believe if it's 50-70 you're good. It might even be like 53-55.