A lot of people are doing it, and have gotten away with it. Or have they? What has been the cause of some of those mysterious 2.4 lockouts? There is yet to be a definative answer to why so many perfectly good radios just stop working. I'll grant that a fair number of them have been from dumb users running batteries too small or flat, but not all of them. How about that plane that suddenly just went crazy in flight, or the loss of control on the ground? What was the cause? You can find 40 page threads on every forum talking about planes that are having 2.4 issues but few look at the entire electrical installation for answers to their problems.

I used to fly UAV's and now only handle the propulsion side with them. Pretty high end designs, with the best electronics suites that can be designed by what are true rocket scientists. What I know to be absolutely true is that our engines and ignitions can electronically swamp the best electrical systems made if a direct feedback loop is encountered. How do I know that? Because I've experienced it and done so with equipment far superior to anything some cheap Chinese electronics manufacturer is putting on the market. Yes, you can run a single electrical power source on your plane but once anything happens that interferes with the separation of electrical busses you're plane is dead meat. You traded safety and redundancy for a couple ounces of weight. Foolish indeed.

But hey, some people are doing this single source ignition thing and haven't been bit in the ***** yet, so it's all good, right? Like I said, you won't find it in my planes because I know it cannpot be defended against when the chips go down.