Another post card question

[cjsjbs]

I've read a lot of discussion about what size post card will be accepted for the sweepstake drawing, but no actual "answer." Has anyone won with a larger size post card (mine are 4.25x5.5 -- came in perforated sheets of 4)?

Also, what if I just put my YEAR of birth (rather than the entire DOB)? I'm worried about putting my entire DOB. Thanks!