edit: after discussion below, this has turned into a proposal to replace this rule with something specifically against ninja spinners. this way we would allow short spinners that aren't ninja, but not short spinners that are. i need help defining what a ninja spinner is, but going by others responses it seems to be a spinner that players can't prepare for without memorizing it in advance
according to the rc,
in addition to this, i propose we add a rule like
according to the rc,
Spinners must be long enough for Auto to achieve 1000 bonus score. Shorter spinners do not allow adequate spin time.i think this should be a guideline, as while spinners that auto can't get 1000 on may often not allow adequate spin time, they sometimes do depending on what the mapper considers adequate spin time for their map's context and the target audience's ability in gameplay
in addition to this, i propose we add a rule like
Spinners must be long enough for Auto to achieve a 300.or maybe something like,
Spinners must be long enough for a 300 to be achieved when spun at 400 RPM.then again, maybe rules like this are also not necessary - but i won't take a stance on that here, all i'm proposing is to make the initial rule a guideline and add whatever rule people see fit, if any