Hey guys, I was wondering if anyone else with flip flops has tried using them with next-gen ballasts. I finally got around to hooking up my Horti-Controls to my 400-600watt switchable next-gens and when the timer switches them over they throw trouble code 4 and have to be unplugged and reset. I assume its the self diagnostic function that prevents them from flipping. I kind of feel like a moron for buying ballasts with cool looking fans and blinking leds when my blue lumatecs have been 5 years strong,the purples going on 3, and 2 years on my galaxys. I really liked the fact they can safely run between 90-260 volts, and for 10 bucks more I could switch between 400-600watts, although I forgot to switch one and ran a 400 watt light with the ballast on the 600 watt setting. This actually makes me curious if any 600 watt ballast will fire a 400 light. Anyway I these next-gens were supposed to replace my blue lumatecs so I can hook up my Sentinel CHHC4 becuase I assume the blue ones have no RF shielding in the cord and will interfere with the accuracy of the CO2 sensor. Anyone know about this?