I don't understand the bother comments. I only asked for anyone with experience and its obvious you only have opinions. When you think about it most ideas and innovations come from the hobbyist. Most people accept what is and not what could be. If you know the Spectrum system the system will perform with only 3 satellite receivers therefore little chance of a problem if the 4th one. I also said I would do some further checking comparing fades to the other 3 receivers.
Lastly not sure why the snide follow up remarks remarks. If you were so bothered and or had something positive to contribute you shouldn't have responded in the 1st place.
K.O.