I'm going to have to agree with Mark. Anonymous guys grumbling don't shed any light on anything. I was part of one of the first production groups & some of us had problems. We reported them openly & one by one those problems were solved. If someone is privately grumbling about the CaTCHER but won't state so publicly or even privately with Marco, then I really question their motives. It took three tries to get the correct soft ware into my truck but I'm all smiles now. I don't run my truck in competition & I've never even seen a dyno in person. I don't need that kind of documentation to tell that the CaTCHER provides better responsiveness in traffic than my EZ did.