I am amazed at how few F/O's do check the EGT and N1's during the takeoff especially in the simulator. I am often well into an RTO while the PNF is still trying to work out whats going on. During the early stages of command training I always ask the question after takeoff "Which engine had the higher EGT?" and they soon realise that they should be scanning a lot more than just the speed tape. As for centreline tracking that should be easy to monitor just with the peripheral vision.