A district court may delay for not more than one additional 30-day period beyond the period specified in subparagraph (A), the rendering of a determination of an application for a writ of habeas corpus if the court issues a written order making a finding, and stating the reasons for the finding, that the ends of justice that would be served by allowing the delay outweigh the best interests of the public and the applicant in a speedy disposition of the application.
(ii) The factors, among others, that a court shall consider in determining whether a delay in the disposition of an application is warranted are as follows:
Whether the failure to allow the delay would be likely to result in a miscarriage of justice.
Whether the case is so unusual or so complex, due to the number of defendants, the nature of the prosecution, or the existence of novel questions of fact or law, that it is unreasonable to expect adequate briefing within the time limitations established by subparagraph (A).
Whether the failure to allow a delay in a case that, taken as a whole, is not so unusual or so complex as described in subclause (II), but would otherwise deny the applicant reasonable time to obtain counsel, would unreasonably deny the applicant or the government continuity of counsel, or would deny counsel for the applicant or the government the reasonable time necessary for effective preparation, taking into account the exercise of due diligence.