Hi everyone I decided a while ago to purchase a set of Lume Cube extremely bright Lights that mount to each side of the H & claim to be capable of 1500Lumens each. They are nice & extremely bright, But they are also pretty heavy & therefore through the balance off on the H. So my question is this: with our ST16 controllers do they have ANY Free Open channels that we may be able to use if we for example, wanted to install a peripheral like the addition of a Payload Drop Servo or a Bright Search/spotlight that has full Pan/Tilt Capabilities. Does that sound at all like a possibility? & if we do not have ANY free/open/remaining channels left & all 16 are in use than is there any other possible way that I might be able to expand & add one or more additional receiver channels to my H by maybe possibly installing a receiver expansion piece into the H connecting obviously to the existing receiver already in the H?? Thanks Tom C