Of course, It is a gamble
here is my logic:
We do not know how long the background check takes. But, if it works out quick, my file would be complete, and I would possibly get my papers early. But if for some reason it takes more than a year, I will be forced to spend $200 + 2-3 extra months and that is okay with me. Well, that's my startegy - may be it won't work very well - but its worth a try!
Edwin.