I'm new to the forums and I thought this might be the best place to post this question. It's pretty trivial but I'd love some help!

I fly often but I have always worn slack/shorter dresses through security, never looser garments. I've heard a couple of differing stories on maxi dresses (for those who may not be familiar, they're dresses that reach to your ankles--a lot cuter than they sound). Some girls have been pulled to the side and some have been fine walking through the scanner. I normally go through the expert lane at my airport, but I'm hesitant to do so if I'm going to be pulled to the side. I hate slowing people up.

I'd love any input! The dress itself is fairly fitted, but I'm wondering if the length will pose extra security scrutiny.