The seven-fold division was introduced by Ibn Kamal Pasha, and it was heavily criticised by Imam Marjani in his nazurat al-haq, which was then quoted and suppported by Allama Kawthari. Mufti Taqi saheb defended the division by giving it an alternative interpretation. Maulana Abdul Hayy luknawi has also quoted it in his al-nafi al-kabir with some criticisms.There are some within the Hanafi's who differ about the above categories. I can't remember where I was reading it, it has something to do with Ibn Kamal Pasha who might have come up with the division or might have critiqued it
Bro al-Kakazai can u mention what Imam Sindi's specific points of contention were with Allama Shami.