[General]
*I'm unsure of the title. The OST has "Knee Socks", but her name is just one word, "Kneesocks". Different sources use different names, but I'd personally say to go with "Kneesocks".
*Also, perhaps move "I Want You" to tags since the source/artist/title is long enough already...
*Kiai only on two diffs? ):
*I'm really not sure about normal/soft-hitnormal. The bass thumping is a nice effect, but being used on every note prevents some audio feedback from being heard. I'd much rather see this custom sound used often throughout the map as opposed to every note.
[Timing]
*I actually expected the metronome resets to be at 02:17:788 and 03:35:597.
*First uninherited section should be a measure earlier (-16) since the music starts there.
*However, the timing feels a bit off, and this is what I got: A flat BPM of 128.000 with offsets of -19, 137793, and 215605. I tested this over and over again on both Hard and Insane, with and without hitsounds, and it feels just about perfect to me.
*Remember to resnap all inherited sections and notes after changing the timing (especially on Larto's diff with the slider speed changes).
[Gladi's Normal]
*5 AR is a bit high for the easiest diff. I suggest lowering this 1-2 ticks.
*Since this is the easiest difficulty in the set, I'd really like to see the largest circle size used (especially since the spacing is a bit more oriented towards a Normal than an Easy).
00:37:247 (6) - Spacing is too far from (5). I suggest either stacking this on the end of (5) or extending (5) to here.
00:52:949 (1) - I suppose this isn't as bad as the above since it's a slider which allows more leniency...
00:54:707 (3) - ughhh those sliderticks don't sound so great... (same comment for the other sliders that repeat like this); or maybe you could see if tick rate 1 sounds any better
01:27:635 (3,4,5) - why not just stack these?
01:37:244 (6) - same stacking suggestion as 00:37:247 (6)
01:43:103 (4) - ^ or at least put this a bit closer to the end of (3)
01:50:603 (3) - Might wanna unstack this to make sure the repeat arrow underneath is viable.
02:13:102 (4) - same as 01:43:103 (4).
03:37:238 (3) - ^
03:52:940 (4) - ^
[Hard]
*AR felt a bit high in this difficulty as well. I really suggest lowering it 1 tick.
00:22:482 (1,2) - spacing?
00:35:840 (7) - ahhh those ticks ): (same comment for other triplet sliders)
*I stopped modding this difficultly after the first break. This was a [Hard], but started turning into an [Insane] with the long streams and some near-hidden sliders. I wouldn't call this a true Insane like Larto's diff, but this difficulty just doesn't feel appropriate spread-wise. I don't want to tell you to "dumb" down the difficulty, but I think it should be a bit easier.
EDIT: Just to note, I had an easier time with Insane's streams than this difficulty's (a lot of these seemed to be more oriented towards blue ticks).
[Backfire's Taiko]
*Many of the inherited lines are unsnapped, so you may want to check and see if you're getting the correct samplesets.
*Another problem with the unsnapped inherited sections is that the 1.5x speed change doesn't apply to 03:35:597 (1), thus making the scrolling look weird.
*100% volume is a bit high compared to the song imo. I suggest lowering it throughout the map a bit.
[Larto's Insane]
*Why is the OD so low? Raise it at least one tick, please.
00:18:497 (16) - spacing could be a bit more consistent between the previous and following notes(nazi)
00:44:629 (1,2) - Do these really need to be 1/8 sliders? Why not just make them circles?
01:52:595 (1,2) - ^
02:18:257 (2) - seemed a bit further away than the other 1/4 notes and sliders (nazi)
02:32:436 (1,2) - same 1/8 comments
02:37:241 (3,4) - I really suggest not doing this (or make 4 a new combo instead) since one can't tell which is the note and which is the slider (especially with snaking sliders disabled). I guess it's not TOO bad, but it's the only time you do it in the difficulty, which doesn't make much sense either.
03:02:435 (2,3) - same 1/8 comments
03:03:724 (8,9) - I didn't realize that these were 1/4 apart since you have almost every other 1/4 note overlapped.
03:08:529 (3,4) - ^ (I guess it becomes apparent since it keeps being used throughout this section, however...)
03:17:786 - Here we're back to 1/2 notes with the previous section's 1/4 spacing. :/
03:29:036 (1) - For what it's worth, you had a note here with the spinner 1/4 earlier at the beginning of the map.
03:50:480 (1) - 1/8
03:57:862 - I expected a note here.
04:03:721 (1) - Ahhhhhhhhhhhhhhhh totally caught me off-guard switching from 1.75x to 0.5x .____.; How about switching this to 0.75x?
as
Great Map. Would love to see this ranked <3 
I hope its not too hard/too overmapped. If you dont like it, don't take it. ^^;
Thanks for looking at the timing derek I'll get to changing the diff around soon, but making the extra hard will take some time 4+ min song = forever and a day to map it.