Can a person who follows the Hanafi school imitate the Shafi'i school regarding ablution if he bleeds from any part of…

There is no objection for a person who follows the Hanafi school and bleeds from any part of his body to imitate the Shafi'i school in matters of ablution, due to concerns such as difficulty in performing ablution or missing Friday, funeral, or Eid prayers. This is because in matters where there is a difference of opinion among the schools, it is not obligatory to strictly adhere to one school; it is permissible to act according to the view of another school due to a valid excuse. (Ibn Abidin, Radd al-Muhtar, 1/75)

Source: T.C. Diyanet İşleri Başkanlığı, Din İşleri Yüksek Kurulu