In my English translation of Maraqi al Falah it seems that al-Shurunbulali favors raising hands during the dua of qunut as he says:
"...When he completes reciting the chapter in it, i.e. in the third unit, he raises his hands parallel to his ears, as we have mentioned, unless he is making it up so that his negligence in it is not seen by raising his hands in the presence of someone who sees him. He then utters takbir because he is moving to the state of supplication.
After takbir he recites the supplication standing because the Prophet, upon him be blessings and peace, used to recite the supplication in witr before the bow. With the Imam (Abu Hanifa), he places his right on his left but from Abu Yusuf, he raises them as ibn Mas’ud used to raise them to his chest whilst their palms were to the sky. Farj, the slave of Abu Yusuf, said, “I saw my master Abu Yusuf raising his hands in supplication when he would enter the supplication in witr” – ibn Abu ‘Imran said, “Farj was trustworthy”. Kamal said, “His basis is the general nature of the proof of raising for supplication. However, it is refuted that it is specific to that which is not in the prayer because of the consensus that there is no raising in the testification supplication.” I say, “There is a problem with this because of the statement of ibn Mas’ud which has just been mentioned.”
Mabsut mentions from Muhammad ibn Hanafiyya who said, “Supplication is four:
1.Hopeful supplication in which he has the centre of his palms to the sky.
2.Fearful supplication in which he has the back of his hands to his face like a person seeking protection from something.
3.Humble supplication in which he clenches the small finger and the ring finger, circles the thumb and the middle finger, and points with index finger.
4.Secret supplication which is that which a person does to himself.”
This is mentioned in M’iraj Diraya."
I think al-Shurunbulali indicated with this that in regard for the dua of qunut it is #1 of above kinds. Can we say that #3 kind is for when reading Tashahhud ?
So to sum up according al-Shurunbulali, when one completes reciting the additional surah in the third rakah of Witr, one raises his hands parallel to his ears (as in the begin of salaah) and then utters takbir. Then lowers his hands to chest height with the palms to the sky and holds them during the whole dua of qunut like this.
Can someone check what Tahtawi (who wrote a hashiyah on Marali al Falah) said about the view of al-Shurunbulali ?
Also what is the narration of Ibn Masu'd where al-Shurunbulali is referring to i.e. to keep the hands at chest height during qunut ?