Hi -

Based on our experience and conversations with Admissions Directors, the best time to apply is when you are ready and your applications are completed to the very best of your ability. There is very little if any difference in selectivity between the first and second application rounds.

Of course, if you are in a position to apply in round 1, then by all means, earlier is better. The class is a blank slate and the Admissions Committees are fresh and ready to go! Further, you may have some decisions before your round 2 applications are due. Thus, you can tailor your school list accordingly. However, rushing an application to get it in for round 1 is not advisable.

I hope this helps.
Regards,
Erin