I never did warmups before PTs, but perhaps I should have for consistency. On actual test days I would do 1 RC passage, 1 game and a dozen LR questions. All "easy" ones that is seen before to boost confidence and avoid fatiguing myself unnecessarily
I've been keeping track of the question types. I don't see much consistency there, but I noticed the ones I get wrong are all within the last few questions. I'll have to check for that pattern too I suppose.