Understandable, but I guess it's hard to put much weight on this data given how easy it is to introduce the effect being studied intentionally. Were the subjects aware of D-H-M beforehand? I wasn't before today, but I've been able to fake a coin flip with precession for many years (a very useful skill for parents of two small children) and if I was participating in a study like this I would be pretty hyper-aware of how much "sideways" I was giving it.