This is about the only post in this entire thread that makes a wee bit of sense.
Yes, there may be significant jitters if you don't know what you are doing/piloting the bird for the first time. Yes, these jitters are largely neutralized once you get the feel of the aircraft/know what you are doing.
More importantly, the loadout/parameters of the aircraft/meteorological conditions can lead to vast, vast differences in aircraft behaviour in the take-off roll, especially insofar as loadout is concerned.
I would definitely not pay attention to youtube vids at this stage. Yes, the FM is still being tweaked to a certain extent but even now, if you treat the airplane like it's supposed to be treated then a lot of perceived shortcomings/quirks seem to vanish.