All of the above, I do. I slow everything down to a science, almost. How I want to take each jump, how I want each corner to go ... I'll study the course all morning. I'll just get into the middle of it and forget the whole thing. I walk into the ring knowing, I just come out with 'off course.' This doesn't happen every single time, but it happens enough to annoy me.
It sounds like a psychological self-fulfilling prophecy. You psych yourself out and your subconscious expects to forget your course. Or it's all show nerves. Try some positive thinking practice. How do you do in lessons when the coach gives you a course?
Oh see, I have the opposite problem lol
I can't memorize a course off a paper for the life of me, I need to like legit visualize it and in five min if you ask me about it I wouldn't be able to tell you but I would be able to go out and jump it. Idk like when im jumping the course it kinda just comes lolol