Hi guys, Just want to introduce the Vortex Dynamic Balancer for drone enthusiasts. The Vortex is full blown dynamic balancer and vibration spectrum analyser. Most commercial systems start at $2000 and upwards. The Vortex sells for only $155. A lot of R&D has gone into the Vortex. It uses industry methods for dynamic balancing. The spectrum analysis tool is useful for diagnosing complex problems with multirotor setups. We also include free software for analysis and online tutorials. Finally a dedicated dynamic balancer for RC!! For more information please follow this link. www.dynexhobby.com If you have have any questions please email us. Enjoy! DH.