It's too late.  Once you Lock In the picks, it can't be undone.  They can be locked in anytime, but no scores until they are.  
I based my picks on the Spoilerish info mostly.  The order changed a bit, after the first list, so part of my pool was gueswork, which is the norm! Right?  I mean they don't always have all of it right.  Well, except one time, several years ago (for All-Stars i think) we had a near perfect boot list!  (who was that guy who used to do it?)  Whoever, he knew his stuff.  Anyway, that year, I think I came in first.  

Thanks for the Spoilerish thread, puddin.  I keep checking it!  (for the other games).