You know what, Skylane? Ford stopped building the Edsel many years ago but no one talks about not buying fords because of that. Spektrum radio systems work just fine. I have two: DX7 and DX6i. And several of their receivers. Not one of the planes I fly with these receivers have suffered a so-called "brown out" and I've owned the DX7 since they first came out. The AR7000 receiver that came with the aircraft is installed in my Venus II and I fly that plane on a regular basis.

A prudent flyer will take measures to prevent any sort of problems from happening. Basically, if you suspect or even feel that you MAY have a problem, what's the sense in tempting fate? If you already have the radio system, then take the proper steps to avoid that possibility. SWITCH TO 6 VOLT PACKS!!!! Problem fixed. Gone, No problem.

What cracks me up is when someone knows that there may be a problem and just lets things go saying that it probably won't happen to me. Murphy speaks.. if it can go wrong, it will, and usually at the most inopportune time, during a landing or while doing a low altitude inverted pass, or some such thing.

Spektrum fixed the problem. Move on or move to Futaba or Airtronics, or Hitec, or whatever. They NEVER have problems.
CGr.