There looks to be a bug when you would have multiple local monitors selected and attempt to schedule their checks via the “random” interval option. Instead of being granted the freedom to set any value to this field as would be the case when you would select the monitors individually (at least with my Professional account) Distill acts as if the selected monitors would be cloud monitors and forces the minimum value to 300s, also including the following message: “Use local monitor for smaller interval or Upgrade Account”