I think both are good qualities, for me, it would be more about finding a routine to use that suits me best. I know for the one where you match the colour, shape and whether they line up, i scored 100% because i got myself into a routine and stuck ot it. Im pretty sure if i could do the same thing\practice doing it, it would help me greatly.
I had a look at cockpitweb (£60) and pilapt-prep (£23). They both seem useful, but im the same as you, not sure how useful!
Hope to see you there on Sept 11th! (i swear...all these tests and interviews are making me bankrupt!!)