Double blind test- over a month- could this be a reliable test for any equipment?


I am aware there are lots of debate about the merit of the double-blind test.Reading lots of articles online makes me feel overwhelmed and also confusing- you could have a totally opposite view of the same piece of equipment and system.
msnpassion
Geoffkait,

I think you are right.  Ozzy Osbourne remained focused when he was biting those bat heads off.

I've had my kids switch my Nordost QX4 on and off randomly and I can tell the difference with certain passages. 
Post removed 
If I were forced to choose between the double-blinders and the bat-biter, I think I'll go with Ozzy. Not that it matters, but one sounds a lot more entertaining.