iirc, the write-up was something like this...
while the track is not challenging to perform at a slow tempo, it is quite challenging to perform at the tempo it's written at: eighth note at 360. so, it was necessary to practice the track before it could be recorded. i decided that it would be best to start at a slow speed, and then gradually build speed by slowly increasing the tempo. i decided that it would take a few days before i could play it at 360. of course, i updated my progress as i went. i'm not sure where i started, but the narrative picks back up again at 300.
i have a screenshot dated to june 16th at 14:18 called tricky.jpg, which is attached here. it seems to be that i was pointing out that this is the tricky part at a fast tempo. i may have also pointed out that the C# at the very top is a very big problem because it can only be reached via harmonic. and, i do recall getting around it by actually playing the harmonic, and at quite a fast tempo.)
tricky.jpg:
