Trimmed the windscreen to fit into the canopy flange. Difficult to determine correct fitting. The windscreen corners are about 2 inches wider than the canopy slot. I wonder how much this will reduce when the windscreen will fall into position. I spent a lot of time measuring and putting reference lines (the rivet lines are a good help). The instruction indicate to measure 10 inches from the firewall, but i found that in that case the windscreen will not fall into the position indicated in the instructions and that the fitting is less than ideal. I resolved trimming the windscreen so that its line falls in a similar position as indicated in the kit instruction (reference to the rivets). After this trimming the windscreen falls in position much easier. I moved to that point using a step by step approach. I used the Silpruf (Sikaflex) method described below. At the end the gap at the corner is close to 0 on the left side, while on the right side the gap is 3/8". Not sure if this is acceptable. As a test i positioned a heater to slightly heat up the the plexiglas while clamped to the canopy to see if the gap reduces. I also trimmed the windshield to have a 3/16" gap to the flange. I asked VANS Support if the 3/8" gap at the right corner is an issue and if pressing the plexiglas into position is inducing too much stress. They replied that the plexiglas looks ok and it is not a big issue to press it into position I TOOLS: 80 grit sandpaper, disk sander, whiteboard marker with an aluminum strip with a hole for the marker at 3/16". 3/32 and 1/8 (if necessary) clecoes with little wooden piece. 1. Remove glas protection 2inches. protect the rest with masking tape and paper 2. Trim glas to fit into window recess. 3. Mark parallel to window flange (PARALLEL NOT STRAIGHT) using the aluminum strip to have constant 3/16" gap from the flange border. 4. Trim upto the mark BUT LEAVE THE MARK. Use sand block for last touches 5. Clean/deburr with tongue depressor or marker body