You can definitely dry burn an LR atomizer. We've long been past the days of the "cheap LR's" where the slightest dry burn would pop them. In fact, I've dry burned 306 and 510 1.5ohm attys at 5v w/o issue. Sure, you still have to be a bit careful with certain atomizers, but there's a pair of brands that are known for quality that I dry burn religously.