Follow a Madhhab to the letter?
The Shaafi'i allow you to pray one Rak'ah of witr based on the authentic hadith in Sahih al-Bukhaari and Sahih Muslim
The Hanbali allow you to pray one Rak'ah of witr based on the authentic hadith in Sahih al-Bukhaari and Sahih Muslim
The Maaliki allow you to pray one Rak'ah of the witr based on the authentic hadith in Sahih al-Bukhaari and Sahih Muslim.
The 'ahnaaf act on the weak hadith and forbid you from it.
Just because I was born a Hanafi you are now going to tell me that I cannot act on the authentic hadith in this issue because I was born Hanafi and must follow their weak opinion on the matter based on a weak hadith?
No, thanks.