00:45:672 (130,131,132) - if you're going to omit your normal 1/8 string improvisation for the drum triplet it might be nice to make it stand out from other filler 1/4.. using kats here for kkkdk would stand out from your previous coloring and honestly does not suck to play
likewise would go for 00:50:836 (208,209,210,211) - which maybe [ddd]kkdddk from 00:50:591 - would work
00:54:853 (255,256,257,258) / 01:00:099 (318,319,320,321) - has an identical wub & drum noise as 00:52:230 (224,225,226) so it'd probably better to keep it as 1/4 dkd for both consistency and variety since all 7-note 1/6 is lame
if you'd prefer to vary from the other two then posibly going for xx[xxxx]xx would work? the wub sounds are pretty ambiguous so it cld work
01:25:017 (507,508,509,510,511,512,513) - while i get the need for variety it feels pretty odd to map after the buzz triplets on 1/4 instead of on the actual 1/2 the song is like. it's distinct from 01:26:738 (531,532,533,534,535,536) -
would prefer you either shift these 1/4 earlier or perhaps map 01:25:058 to make it flow nicely?
likewise w/ 01:30:345 (582,583,584,585,586,587) and other examples every two kiais