I'm just asking because my personal opinion is that preparation as such for feast isn't actually that useful. It is designed to test your natrual abilities, by preparing or trying the tasks beforehand you risk breaking the system. For example it's been suggested (although I've never seen this confirmed) that one of the paremeters it looks at is how you develop during the test. So if you've already done the task for 6 hours, you will have very little progression. This in turn may give the impression that you're not learning, and therefore lead to your failure on the test.
All the above is opinion and speculation. I have had many a discussions with people about preparing for feast. Some say it really helped them, for me personally I don't see why.
What I myself did before sitting the test was that I played a lot of tetris, and I used a website called lumosity. Did either of that help? I doubt it. The tetris was quite good fun though, and the website also had some fun games on it. But I doubt either of them did much for my result on feast.
My standard advice for all of these tests is sleep well the night before, have a good breakfast, and make sure you do your best. If you do that, and have what they're looking for, you should get in. Worked for me anyway