Thanks man! The cool thing about game design is that you can always learn from more experienced people, just like I am doing right now 
I think I am still going to use the tick, but you triggered my curiosity now!
So, this is the function that I am using to move the cart along the spline:
What I do not understand is where I am supposed to place that timeline.
Here is the tick which handles the movement:
If I change this to a normal event, should I just place that after the second branch?