So for me, Blind Review is chance to review my answers without the time constraints, I go through everything more critically even with the answers I felt sure about.

I would suggest using the notes field to really break down the question. I review the premise, conclusion, why I chose my answer, and why I think the other answers were wrong. They have a "Wrong Answer" template that is a great place to start.

I've found it beneficial. I've gone from -7 during timed mode to -2 in blind review (LR specifically).