That's certainly my overall impression (as a former trader of the Dax and a current one of NQ). I've been wrong before, but I suspect that the "key issue" here, if there is one, was correctly answered in the very first response.
The only one that could shed light on this is you, since your presenting rather vague information as to what you put into your system. This is really OK by me because i wouldn't share my hard work either. For now you should just be pleased with your results and just go forwards.