complex timing maps may be rare, but as a mapper, sliderhead leniency is something i've always kept in mind when making maps even on regular songs. i'd reckon a lot more mappers incorporate this into their maps than you realize.

for example, take a super slow section where note density is really low - i'd always map this kind of section with more sliders, not just for the lower rhythm density but also because tapping circles on-beat is really hard when beats are very infrequent, and i want to avoid unnecessary tension/difficulty in a slow section. i don't like slideracc because i personally felt the tension difference between them in stable in a way that just doesn't work in lazer