Oh my goodness, you have no idea how happy I am to have someone playing my game and sharing their coasters! This is legitimately one of the smoothest, if not the smoothest and most well-rounded roller coaster somebody has ever built in this game! Keep up the good work, you are a pro!
I will definitely make some sort of animation play during the turnaround. Heartlining wouldn't really work since RCB2 is a 2D game, plus you could just build heartlining yourself. I like the ideas, though!