gtx, try moving the ubec away from the reciever and see if that helps the glitching problems. What brand of ubec is it? I have had more issues with the cheapo chinese units and have not had any with the cc bec. The cheapo ones are very "noisy" and will cause probs with the rec. Or disconnect it and run a receiver pack and see if that helps. Or try some al foil around the ubec, I just thought of that
Hope this helps.