I've got this tx/rx setup and am getting terrible range. The website quotes 500m (which I always assumed was optimisitic), but it seems like I'm barely getting 50-75m - even when the antenna is on the "right" side of the quad flying away from me. How should the stock antennas be oriented - I'm assuming vertically for both, but does up/down matter? Is it possible I've got the channel wrong on the Rx? Would I get any signal at all if I was off by one channel? I've also picked up a set of these - 3 lobe tx and 4 lobe rx. They actually seem WORSE than the stock antenna. Any tips for improving reception, using either the stock antennas, or a combination?