toomuchradiations questions
..whether u think it's better to have an MCC rating and/or JOT rating before going for the Sim Check?
I think it would be of help to have a MCC. Can I presume you are applying from a mil non ME background?
..do they actually pair you with another candidate for the sim check?
Yes. One of you flies one leg and the other flies the return. However you are assessed as both handling and non-handling. The assessor sit behind and operates the sim.
..do we have to do other aptitude tests like the computer based tests we did on day one?
No. I believe that there may have been a some tests at one time but I didn't do any in April and no one I know has done any. I believe that when BA were introducing some new tests, they asked candidates to complete them on the Sim assess day to compare.
Good luck.