I understood my rebbie's, Rav Yoseph Beer Soloveitchik's, refusal to say Baruch hu umvoruch shemoh as a simple problem of Hefsik. During all situations of the Shaliach Tzibur saying the bracha to be motzei me through shomayah K'oneh, my recitation of Baruch hu etc. would be like me adding those words to my own bracha and being Mafsik the B'rachah or creating a bracha outside of the form established by Chazal. Thus most Rabbanim that I know will instruct their congregants at the very least during the brachot for megillah or Tekiat Shofar not to say Baruch hu etc. During the Chazarat Hashatz since the Rav viewed that repetition as Tefilat Hatzibur I am required to stand with feet together and answer amein, though not baruch hu etc. since his recitation is my recitation (as part of the Tzibur). Furthermore, any time I wish to fulfill my 100 Berachot requirement through the Brachah of another I again do not say Baruch hu etc for the reasons mentioned. I am aware, however, that there are numerous Rabbanim who do not consider Baruch hu etc. as a hefsik, and I certainly respect their position.<br>
<br>
Stuart Grant<div id='MAILCIADA033-d3d94a513a7f353' class='aol_ad_footer'><br/><font style="color:black;font:normal 10pt arial,san-serif;"> <hr style="margin-top:10px"/><B>A Good Credit Score is 700 or Above. <A HREF=http://pr.atwola.com/promoclk/100126575x1222887319x1201497660/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=62%26bcd=JulystepsfooterNO62>See yours in just 2 easy steps!</A></B></font> </div>