Sorry, only just seen your message. I only really did the dots test for DBS. It's on paper and there are only two shapes, the square and the Y shape of dots. The next test is the tea occ where you have to count tones and circle symbols. I thought it was going to be easy but it wasn't and caught me out. I counted the tones correctly but didn't circle enough symbols. Two tests and the whole group of us were out the door.
If you're coming from a long way away, I suggest you stay at the Holiday inn Express the night before. It is only ten to fifteen minutes walk from the test centre and does a full English breakfast included in the price to set you up for the tests ahead.
Sorry I can't tell you anymore about the rest of the tests. Good luck and let me know how you got on?