I'm with you guys. After using the Tech Aero unit I will not be setting up a gasser any other way. To get equal performance the old school way you would have to run an additional battery, switch and optical switch. Three things replacing one. My math tells me the IBEC is the more reliable way to go. There are far more things to worry about then the possibility of RF through the Tech Aero unit. Range checks tell all, I get exactly the same range either engine on or engine off. That is something I had never seen previously. Granted that could be contributed to other things as well. Being that my Extra is flown in IMAC competition there are at times in the sequence that the airplane is quite far away. All flights have been rock solid to this point.