[Avodah] Baruch Hu Uvaruch Shemo

[Zev Sero]

Simon Montagu wrote:
>  From the Daily Halacha emails which appear in my inbox:
> 
> 966. One should be mindful to carefully pronounce each word when 
> responding "Boruch Hu U'voruch Shemo", and be especially vigilant to 
> pronounce the letter "Vuv" of U'voruch. Piskei Tshuvos 124:11, Kaf 
> Hachaim 124:29, Boruch She'omar

> Can anyone provide a source and/or a reason for the halacha as stated in 
> the Daily Halacha?

AIUI Shabtai Tzvi followers would deliberately omit the first vav
of "uvaruch", because without it the phrase adds up to the same
gematria as their leader's name.  I don't know a source for this.

-- 
Zev Sero                      The trouble with socialism is that you
zev at sero.name                 eventually run out of other people’s money
                                                     - Margaret Thatcher