SPOILERRecommended HP drain: 5 Might consider HP/OD 5.5, but anything lower will not make a good HP/OD bridge.
00:53:734 (30) - Although this snippet may be mapped like it's double BPM, having a finisher at the beginning of a 1/4 or finer pattern like this is generally discouraged. A player of this level will have a hard time hitting the [ddk] right after this if they try to hit the finisher. Reconsider this and all similar finishers. I was well aware of this, and I did it intentionally. It sounds fine without a finisher so I removed it c:
00:54:984 (39) - The finishers at the end of patterns, like this one, should be okay though.
01:05:609 (1) - The bridge following this note can have some 1/4 bursts in it, following the guitar. For an ultimate difficulty, this is perfectly reasonable, even if it's supposed to be a break period. As you said, it's a break period so I'd prefer to keep it relatively simple.
01:39:046 (93,94,95) - There's a bit of a drum roll here. Representing it as a 1/8 burst is perfectly okay considering your style in the rest of the map. Try [ddddk] instead of ddk like you have. Considered 1/6 here, but I don't really like the idea of having a dense pattern in the middle of a calm section. If there is a serious concern for this, I'd change it.
01:43:109 (106,107) - Following the lead of (101-103) just prior, you can make this a burst. kkD rather than k-D like you have. I made the SV in the kiai 1.8 so that the 1/4 patterns would be easily readable and no overlap between hits occurs. However, since it is slower here, I decided not to create a 1/4 pattern. Similarly, 00:39:359 (16,17,18,19,20) - and 01:59:359 (17,18,19,20,21) - do not have finishers at the end of them for the same reason (although it'd still be quite readable with the finisher).
02:33:734 (116,117,118,119,120,121,122,123,124,125) - For this and similar parts, following the guitar's lead in some cases can break the regularity of these patterns and keep players sufficiently on their toes. This is especially useful in the second and third choruses, where this part is given twice. Try d[ddk]d-kkkd instead of d[ddk]dkdkkd like you have. Tried some things with this. I found that I liked d[ddk]d-kd-D, creating a gap before the finisher to emphasize both the finisher and the guitar matching. However, I felt that this was somewhat strange to listen to as the 1/8 has a focus on the drums but then the focus quickly switches to the guitar. I may change if I find something really awesome c: