Hi - I am going through the mortgage process and qualified for my CU product of 5/1 ARM with no down payment and no PMI. To qualify, I had to have a mid score of 680. I had two 687s and a 625 score at preapproval and submission. Now that loan processing has begun, I got my quarterly report from here, and while two mortgage scores went up (to 691 and 644), my mid score dropped to 678. Is this a deal breaker? They pulled my scores 9 times between all bureaus - nothing has changed in my credit report, other than the inquiries. Any insight would be greatly appreciated, as they will pull again at closing. Don't need to tell anyone how stressful this is! 
