[Pete R]

I think there is a theory about that but I think it's mostly bs. I'm sure to some extent it may be true but these belts are very stiff, they aren't stretchy like a rubber band. A properly tensioned belt with good gears will not slip. If the belt is loose yes, they have been know to slip, but not on the cam gears. They will generally jump a tooth or so on the small crank gear way before it's loose enought to jump the cam gears. There is too much wrap to jump the cams gears. An option for you then may be the PK tensioner, from what I understand you don't need to tension the belt, it does it for you via a spring and keeps the tension. Other know more about it.