Most companies will probably not care as long as you have the time before you interview. Eagle will probably audit your book, figure out that you did not have the time when you claimed you did, and disqualify you permanently.
Other airlines it will depend on the individual interviewer...if he's a real stickler and he notices it he may send you packing.
Honestly usually pays...when confronted with exactly the same situation with eagle years ago (I was a little short of the 300 ME they required), I discussed it with them and they simply asked how long it would take to get to 300 and scheduled the interview shortly after.`