The bottom edges of my foils have been leaving angled gaps or wrinkles on my 220 vinyl (newly purchased and several different roll-colors). It has been suggested that the tension from top to bottom is off which makes sense. Is this motherboard issue, a sprocket issue or head issue? The fact that it happens after about 2-3 feet into the job leans me toward a sprocket. Reading through past forums has not really discussed issues like the motherboard, sprocket or head being a cause. Also having the issue of the first color going down and the colors after being about 6 pix off which sounds like a motherboard. Any advise or insight would be greatly appreciated. -clifford