Rightly said, however i have a point here.
As Krasburn said, if the respective courier gives 100% guarantee, only then apply for FSW 2014 (when u r sending your courier on 26-27 December),
This is because;
1) If courier is delivered as promised by 31 December 2014, you will be in FSW 2014 race
2) If not, You will not be in 2014 race and also you will be late applying for EE 2015 taking risk since, you have only 1 IELTS original result (Must and and Mandatory document).
Agreed Krasburn, if i was in this scenario, then i would have opted for EE (Since i know that some forum members mentioned how difficult is to get another/2nd Copy IELTS results).
* above said is my view considering best benefited scenario for an applicant. Correct me if i am wrong.
All the best