I have used Lazer-Works and had great service I ordered a Ultra Sport 60 when I got it I notice that the tip rib was the wrong size this made all the ribs wrong except the root rib, I called Ed told him about the problem he said he would look in to it. Two weeks later I received a new wing kit all the ribs were right no charge and a note saying thank you for pointing out the problem, A friend of mind has purchase two more short kits from Lazer-Works all great. [link=http://lazer-works.com/rcm.html]Lazer-Works[/link]