Goodness! This topic never seems to die.
In Northern Virginia, ride without a helmet, top or not, at your own risk. Finally got a top a few months ago, and talked to a LEO in a parking lot. He advised to wear a bucket.
If you want to carry a printout of some state law, and be your own lawyer on the side of the road, go for it. If the cops smile and wave as you go by bucketless, they just met quota, and are off to party. Doesn't mean you are good, just lucky.
I always reek of alcohol, and really don't want to socialize with the law. Get youself a shorty bucket. I wear mine like a hat. Drop it on my head, but never lace it up. Easy-peasy.
Lots of outstanding advice from folks 10x smarter than me on this forum. But, dang, I have heard some really wrong advice on buckets from forum members. So wear one. It won't kill you.
Last I checked, and it was a bit ago, Virginia wanted windshields with wipers (not me), and who knows what "enclosed body" means. Not gonna leave that up to a LEO who has NOT made quota. I think the Virginia language was for Elio (rest their soul) & maybe Tanom, not us good people in Slingshots.
@MACAWS should know very well the NC laws. Though visiting him last fall for a ride through NC, I was told no helmets necessary. Only to find out that it was one man's opinion that in NC "they just don't care". Sure.
And, maybe it is just me, for long rides I will always wear a bucket. Eating sand, rocks, dust, dirt, apple cores, banana peels, cigarette butts, fast food wrappers, chicken bones, bird shit, birds, blah in my 2 wheel days taught me the merits of a bucket with a pull down visor.