The early 920 does allow use of two controllers, a pair of ST-24's or a single ST-24 along with an ST-12, and allows Team mode. Yuneec elected to discontinue the original 920, converting them to the 920 Plus version and in the process discarding the ST-24 in favor of the ST-16, which eliminated the ability to make use of two controllers and Team mode while using the CGO-4. So you don't get to use the best way of working a camera while using the better CGO-4 camera. However, and this is an important however, if you elect to obtain a CGO-3 adapter, mounting a CGO-3 camera returns the ability to pair up with another ST-16 and have Team mode again. Down side of this is the system reverts to the Typhoon H working screen and flight features while using a CGO-3 and you don't have near as much camera functionality.