Spent the day marking the windscreen frame and top skin to prepare it for attaching the windscreen. I started at the top center of the windscreen and drilled the first hole. I then determined the shim needed to bring the outside of the windscreen about .030" above the canopy. I continued down the side of the frame at the described centers. I then formed holddowns for the front edge of the windscreen and drilled the top skin to hold these in place.