What is a stall strip? Is this a boundary layer tripping device that allows higher AOA flight? If so, you want to position it on the top surface somewhere upstream of where the flow would normally separate during a stall, which would be somewhere around 50% chord. It would be better to err towards the upstream side... tripping the boundary after the stall wouldn't help much

If you didn't already know, while such a device would allow higher AOA flight, it would also create higher overall drag.



If I mis-interpreted the question, sorry.