Shalom,
Need/should one who is just about to recite the brachah over his tefillin refrain to answer amen to the shaliach tziburs birkas hashachar? What if they are concerned that refraining would cause them to fall behind the minyan?
Thank you
Answer:
He may put on his tefillin when he is ready, even if it will put him into a situation that will prohibit him from answering Amen.