coodem
I did all the Thursday exams Law, HPL, VFR & IFR Comms, Law & HPL in the morning and the comms in the afternoon after a well needed break for lunch.
I also did a couple of other heavy days before that with no problems, you just need to know your stuff and have had pleanty of practise with the feedback questions.
I assume your already studying and the two weeks before the exams will be brush up stuff, you also need the application form in and the large fee by then, I'm sure CATS will arrange it all.
Good Luck.