Not necessarily. Too little toe-in can cause the Spyder to follow road irregularities, making it climb the crown, but there are other possibilities. Suspension looseness or damage on one side could do it. This would eventually be accompanied by irregular tire wear on one side. On heavily convex or concave roads this can happen to any Spyder, although insufficient toe-in makes it worse. The most likely cause other than insufficient toe-in would be improperly calibrated steering sensors. If the snsors are not centered, the VSS will try to steer the Spyder in a direction other than straight. Sounds like you may need to see your dealer. If everything is right, the Spyder should go straight ahead on a flat, level road.