The glass work on the cowl and the wheel pants is excellent. The plastic fairing can be reordered if you arent satified with it. I ALWAYS use Robart hinges. Try a bigger engine that a 1.6 four stroke. I use a Super Tigre 3000 and have plenty of vertical. As far the tires go, yea they are too soft for pavement, but you dont need a college education to figure out that if you store it without any weight on the tires, they wont develope a flat spot. I changed the tires to sullivans ultra lites. Very good flying machine. Will knife- edge for ever.