Originally Posted by NotJustDreaming

From what I've read, one of the reasons for doing the multiple apps in the same day (or close days) was to avoid the significant impact of a lowered score after the new credit takes effect.

On the first days you only take a small multiple point hit for each pull (2 points each or so). But a week or two later your score goes down several points per credit card and can take a 20 point hit or so.