Once the inside part of the spat was mounted with the 4 M5 screws it was apparent that there was going to be a bit of work to get the fitment good on the larger wheel cover portion. The front side fit fairly well with some sanding, the rear edge was fairly off so I took off a fair amount of material using the scotchbrite wheel. After many adjustments and perceiving to find the best compromise, started drilling holes where I could use the 2.4 mm clecos before upsizing for the M4 bolts. One of the things constantly being checked was the gap around the tire and spat so that it was as even as possible spacing and also that the point of the spat appeared to be straight/tracking with the front of the plane. Inserted with M4 rivnuts with JB Weld epoxy. I put more rivnuts in than the instructions call for to minimize any gaps between the two spat parts.