happen at any time. All im saying is JWT sets their Ecu's on the conservative side to be safe and protect your car god forbid something goes wrong. Ash has said him self that he sets his programs on the wild side. I guess I should have just said that but when you really think about it JWT being set on the safe side is a safer bet. Also I have heard stories of Ash's not doing well at alttitude (where I live) so I am just saying from what I have heard I guess I would have to do some reading to give you guys a straight 100% answer. Anyways this is brought up at least once a month and everyone says JWT and I wonder why. JWT is in my opinion and in most opinions the better choice. Hope that clears it up some.