> Indoors or out on a same temperature very humid summer evening the streamers >are about 4 feet long. That's a full 25% improvement! I've seen this coil behave >this way over and over again. I'm certainly convincved! Same conditions with me. Definitely longer sparks in humid atmospheres. Maybe you have a bleed off to ground. Elevate your system. And check all your ground connections. Good luck! *** Magic Bill ***