[Avodah] zachor

[Eli Turkel]

<<The Acharonim note that both the reader and listener must have the
proper intention to fulfill the mitzva.  The Taz  claims that this
applies even to the berakhot recited before the reading, and that one
who does not hear the berakhot does not fulfill the obligation. This
raises the interesting question of the extent to which the Rabbis
defined the mitzva of zekhirat Amalek as the reading (or listening to)
the portion from the Torah with its blessings.  The Taz apparently
believes that the mitzva must be fulfilled within the formal context
of keriat ha-Torah, which of course includes the blessings preceding
and concluding the portion.>>

RYBS assumes the mitzvah is hearing the parsha from the baal koreh. He
brings the minhag of his father (who always got the aliyah) to NOT
read along with the baal koreh for zachor.
While fora normal aliyah one should read along with the baal koreh
that is because one
ideally should read oneself.
However, for zachor was keeps the mitzvah through shomea ke-oneh and
therefore reading
along would result in doing the mitzvah twice simultaneously


-- 
Eli Turkel