In HA knife edge flight, there is no lift on wings so moving spoilerons same way as elevator seems to make sense. I'v noticed all of my profile planes(before they went in)used to pitch up when spoileron applied-opposite to what I thought would happen, this also might be the case with the UCD. The stall strips are nothing more than balsa tri-stock mounted on the leading edge, the flat part channeled out to fit better. For now they are just pinned on w/t-pins so I can quickley find the best placement & lengths. I have 2 strips on each wing half, on the tip it is about 1/3 span, on the root the strips are shorter and are placed in the prop-wash flow.
I need them to get control of wing rock, since adding them I can harrier the .60 UCD pretty good. I've also learned that entry into a harrier is critical(with the UCD anyway)- I have to ease into the throttle while adding up elevator, throttle up too fast and rocking can be unmanagable even with the strips.