Agree with what Anon B is saying, the PST is, in my opinion, a lot easier than the McK PST. If you have practiced religiously for the McK PST, you will find this test a breeze. The questions are along the lines of: chart interpretation (but nothing too difficult) and if you were to do this analysis what would be the order (tricky).
The vid interviews are strange (I have never done it before) but actually pretty easy. You get two behavioral questions that you need to deliver in 3 mins (I think) and you have 5 mins to prepare. The only tricky part is to deliver it exactly in three mins without getting cut.
The last vid interview is on business case. Mine was slightly unusual but they're only testing your logic and structuring. If you have studied for case interviews, again you will be fine.
I didnt feel great after the interview - I was overtime in my vid interviews and receive invitation for next interview anyway. My guess is that people dont do too well either in vid interviews, so it's not bad. Just a weird experience.
Then to prepare:
- McK PST --> try to get 80% just so that you are confident on that day
- Time yourself doing the responses in front of the mirror - you will be looking at yourself in the interview process
- Brush up your structuring skills, and a bit of hypothesis testing.