In the Dooree version, how much harakaat is madd muttasil?

Question
In the Dooree version, how much harakaat is madd muttasil?
Answer
There are two different narrations made popular by Imam Ad-Dooree, one is popularly labeled as Dooree Abu 'Amr, to show which Qira'ah he took from.  The other narration is called Dooree Al-Kisaa'ee, again showing the Qira'ah.  In both of these riwaayaat according to the way of Ash-Shaatibiyyah, the medd al-waajib al-muttasil is lengthened four vowel counts.