Pick up a voltwatch and install it. You can either plug it into a vacant RX channel or Y one of your used channels to accomodate it. It will do several things for you. It will give you a quick glance of your receiver charge (under load), it will give you an indication of binds in linkage, and it willl give you some peace of mind for the overall receiver/servo installation. It's a real worthwhile way to spend $11.99 (Tower Hobbies) you could make.

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