[ttaunton]

Item number 3 in your link sounds it might be some help, but the essential picture that accompanied it is no longer there. Mine is a 986, but I don't recognise the linkage you mention, attached to the "....slotted screw onto which the body-colored support arm of the clamshell is attached etc...." Maybe a later model of Boxster? One thing that I would be very interested to know is the part that the microswitch plays that is mounted in the LHS gearbox. There isn't one in the RHS gearbox. My car's clamshell behaviour is excellent with respect to the hood going up; the clamshell ends up level, and everything is nice and taut. Roof going down though is the problem, LHS is OK, but RHS is poor, no tension there and the clamshell ends up a couple of inches up compared to the other side. All very obvious when the clamshell is removed and there is just the L and R arms being driven.