I have successfully loaded the jp paper mario wad on my wii, but whenever I click start on the channel, it says "This channel can't be used". I have another japanese wad (super mario 64) on the same wii which works perfectly. What should I do to fix this?

I am currently trying to learn the English route for TTYD any%. I was able to get goombella buffer pretty easily, but bookcase jump has been really difficult for me. It just feels really random to me, even after watching ed's tutorial on youtube. I have gotten it 4 times in about three weeks of about an hour or two a day of practicing it. Normally after the spin jump I land right near the corner of the bookcase, but I can never get on top. Is the spin jump frame perfect or is there some way to get the timing down with a metronome like runners have done for uhe / yoshi skip?