You could add some shelving along that wall at various elevations and angles followed by some man made rocks outta foam and stucco which would extend the course via a switchback.
This is the part I am gonna change, the end, I can come off the upper part onto this lower peice without it being a jump more or less or just slamming.
Well, I ran it a few times now, the first section is pretty hard, lots of tire bind spots. The second section, wich is the board on the wall, works pretty good, but is hard, you gotta make it hang on with one front tire and carry itself over to the next section. Once it gets there then I make it to the bottom of that section and am done. I think I might try to go farther along the wall and go under the far side of the desk.
I'll try to get vid later.