it is good that you are good in that , but think before making any choice. as there is no guaranteen that there is scope for you.  out of 50 only get the job. be prepare while making any decision. i am no demotivating you. but this choice may get some changes to your career. and now talking about your question yes you can deffinately use it as ECA advantage in du. if you make that decision than go for it and make decision. all the vesry best . you can ask if you have any other querry.

best wishes.