Organizers who avoid pools of 5 are to be commended. Organizers of events (qualifiers or otherwise) who routinely use pools of 5 vs other options will get reputations for doing so and people will pass on going to their events. For example: a D1A ROC organizer this past season ran a 20 person event using four 5-person pools, contrary to ROC specs. Then to top it off out of the four people assigned to referee the pools, only one had a referee rating, and another who's over 18 lacked the required background check. Why should people travel to such poorly run events?