hey adum, i thought for a sec - if the avg rank is used to select the problems for the trial, why not use the avg solving time these ppl solved it at as well?
of course some 6d-10sec problems make no sense so maybe add an exception for hard problems >90% solved too fast or just add 10 secs locked down state before each problem and then 1.5 or double the avg solving time instead of the current 60 secs?
{Posted by santa c}