V_J
My experience of last year suggests that phase 2 assessment dates will ONLY be offered once the application window closes. This was borne out when I contacted my chosen FTO today. They informed me that that dates had not even been finalised as they are a long way off.
BA confirmed last year that there will be no disadvantage to submitting an application right up to the deadline - which sounds logical.
Not saying you're lying but you may be confused.