So i've been doing lots and lots of tests on my 600d t3i. Since i was looking for some key answers and i couldn't find it easily, i'm gonna try pointing out the answers i found to be the most important ones.
I've been using two differents built ins in two different sd cards. I'm using the ML Nightly built in in the 32mb/s card and that latest built in of Tragic Lantern in the 95mb/s sd card. Why am i using different bult ins? Because i'm trying to find out what suits best for the 600d and maximize it's capability of recording 14bit Raw video. (Good on ya ML, thanks)!!!
Tragic Lanter is the best option, the latest version of it. (I tried out the six thirdy too since it's beginning).
I've also concluded the best way to have a longer time recording and more resolution is by setting image format to sRaw, then setting 1080 x 720 60fps on the Canon stock menu, i tried out all different set ups and the 1080 x 720 60 fps set up was the most satisfactory for my use. Keep in mind i'm not willing to open hands of 24 fps. You can get more resolution, less alias, and other stuff trying out different set ups using for es. 18fps, 10 fps, or even 2fps (useful for timelapses i believe).
(Again, this is my impression of it).
I also benchmarked my sd card and i haven't got a single pink frame since it has been done (have no idea why). The 2 resolution i got more satisfied with was
MG version: Tragic Lanter latest built
Resolution: 1600 x 480
aspect: 2:1
Frame: Override: 24fps
10 sec of continuous recording
Card speed: 95mb/s
Global Draw OFF
Pic Style: Cinestyle
Also
MG version: Tragic Lanter latest built
Resolution: 1728 x 448
aspect: 2:39
Frame: Override 24fps
10 sec of straight footage
Card speed: 95mb/s
Global Draw OFF
Pic Style: Cinestyle
Why did i choose the two options above? Because when editing i can stretch and squeeze the resolution to fit 1080 x 720 (which is what i'm currently looking for). It also gives an anamorphic aspect, which is nice for films.
I've download the pic style for canon: cinestyle, visiontech and visioncolor. It's sort of codec log for canon, sort of... It keeps the image with a good balance and it gives more range while correcting the colours, it gives a flat profile to your footage. Best for color correcting.
Hopefully the information given was useful for you.
Ps. Pardon on my english. :D