Putting on the Tallit Properly

With H-shem's help, we have begun learning Hilchot Tzitzit with the Ben Ish Chai, Hacham Yosef Hayyim of Baghdad. The sefer is translated by Shmuel Hiley and published by Yeshivath Ahavath Shalom Publications in Jerusalem 5765/2005. He calls the names of the Chapters by the names of Parashiot, so instead of Chapter One, the first chapter is called Parashath Bereshith, Laws of Ziziyoth. Please note these are for learning purposes only.  For the halacha lemaaseh, i.e. for what to do yourself please ask your own Rav.  

Parashath Bereshith, Laws of Ziziyoth, Page 8-9: This is a long entry so we will break it up over a few days, BE"H

10 (continued). I would also like to add here an open reprimand to those who, after reciting the berachah over the tallith gadhol in the morning, cover their heads with it for no more than a second or so and, from then on, wear it only over their shoulders.  By doing this, they have never put the tallith on correctly, and the berachah which they recited over it was in vain.  It is therefore important to leave the head covered by the tallith {after reciting the berachah, and having completed the sequence described above, 5} for at least the length of time that it takes to walk four ammoth.

Ibid. (4) If one drops the tallith after having recited the berachah over it, before putting it on, one may still put it on, and one does not have to repeat the berachah (Ma'amar Mordechai z'l, 17, et al.).

This learning should be in memory of Maran, HaRav HaGaon Ovadia Yosef, ztz'l.