About question 1. - you've followed correctly. I guess your "jump" point is around 180deg? in the blend file they provide they also have this "jump", around -70deg, but it's not very noticeable. I hope someone can explain how to avoid/reduce it, because I couldn't find a good solution.
Hi there,
I Figured it all out and the Animations came out Really Smooth, Thanks for the Reply.
P.S in the End (After a good amount of Blender renders) took everything into UE4 and Generated the Static Mesh (The steps) along a path and used a Speed Variable.
The renders went down from 2 days to 30min. It was a huge time saver.