Q. Given the choice, should one daven in a vasikin (sunrise) minyan that is on the fast side and one cannot have such good kavana (intention), or with a slower minyan later?
A. Horav Shlomo Miller's Shlit'a opinion is that it is better to daven with the minyan where one can have the best and proper kavana.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a