Q. A yungerman who was previously makpid (careful) to always daven with asara mispallelim (ten attendants who have not prayed) as Rav Moshe (Feinstein zt'l) says and was now offered to join a Kollel where he will have to daven occasionally or maybe even often with only six, should he join or rather continue his previous practice?
A. Horav Shlomo Miller’s Shlit’a opinion is that if they can't find anyone else and the needed minyan will not survive, he can temporarily join them, until they find a replacement.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a