I enquired about your doubts to a Shafi'i scholar. He was about to go for a journey, so I couldn't ask in detail, but got answers Yes we should do as the imam does and its sunnah to do raf'ul yadain. Yes one can recite surah if one gets time. I couldn't ask this. One can get up after the first salaam, but will miss the reward of the second salaam of the Imaam, so its better to get up after the second salaam. The Imam said, just taking two hairs will fulfill the wajib. Allahu Alam. Do make dua for the scholar, he is suffering from a chronic disease. Edit: i got this from Umdat as salik: Then men have their entire head shaved, which is optimal, though one may confine oneself to (0: removing (A: by any means) three hairs thereof (0: i.e. from the head, not something else such as the beard or mustache), or may merely shorten it, for which the optimal is to dip a little less than two centimeters from all the hair. . As for women, it is optimal for them