1) Took me months to finish this project (since February 16). It was more about the edit and the soundtrack and conspiracy rather than the stunt. I had like a month pause and then went on - had load of stressful organizing with the clips as sometimes the render would fail due to the effect - so I'd have to restart.
2) Probably the best GTA edit I have done till now with 22.5GB of Fraps footage in 1080i x32. Not to mention the stress of finding the source inside the project file ( https://i.imgur.com/KFmDMzw.png ).
In single player, after completing so many fairs you get a boost which allows you to do those sort of stunts by spam tapping a button. So, it's not hacks. (PK, they don't shieeeet, I a/d and I know that shiiiiet)