The only advantage I can personally think of is looks. Some claim the hybrids hit harder because you arent limited by the current capability of the 510 connector. Lower voltage drop. I personally think you can get PLENTY of fire from a 510 connection. If something were to go wrong with your hybrid, chances are you could get it fixed. Most hybrids are limited production high end devices. I would imagine most companies that make them would fix them. Probably for a fee.