The rule in the RSS specify (61.1.a.2) a boat less than 6 meters (19'8 1/4") in length is not required to display a protest flag. The I20 is actually 20' in length so over the limit by 3.75", so our protest was thrown out on a technicality because our team didn't display a flag (don't know who could have seen it but....) It was frustrating but interesting, everyone was reading the RSS's and running around measuring hulls, a good learning experience.