Bulb ramping sunset time lapse help

[BradleyStearn]

I shot my first day to night time lapse last night using sunset auto bulb ramping on magic lantern 2.3, on my canon 600d.
I shot using all manual settings.
I got a lot of flicker still as the sun set, and was wondering if anyone could offer any tips for getting rid of flicker in camera, as I always prefer getting things right in camera than editing in post.

[dmilligan]

http://www.magiclantern.fm/forum/index.php?topic=5705.0