You know, if you read the reg about logging instrument time, it would seem you guys are following both the letter and spirit of the law. Personally, I think that if you are over an undercast layer, you can't see the ground and it should be loggable as instrument time since your only form of navigation is using instruments. But on the Instrument Rating knowledge test, they ask this same question, and the correct answer is that you can only log instrument time in a cloud. I suppose they think that if you're not in a cloud, you have some reference to the horizon, even though it may be a false horizon. Go figure.