i just downloaded an app called Solar Sphere. This app tells me the KP index. I've heard people mentioning this so it was easy enough to download. Currently I'm in my New Hamphire summer home. It 75 degrees, no wind and the sun is shining. It seems to be a perfect fly day. This KP index thing is something I don't really understand and honestly don't care to know all the scientific things about it because I wouldn't understand all that stuff. From what I've read this index is set up on a scale of 1 to 10. Right now when I open this app it reads that the KP index is a 6. All I really care to know is where this reading is supposed to be for flying. It almost sounds like a six (6) could be trouble. So if someone could just tell me the basics and what would be the ideal index thT would be good.