Be very carefull with the supplied hardware. I threw all of it in the trash. On the first spitfire I had many screw heads twist off, the CA hinges may or may not work. I used GP ca hinges on the first one and plastic pinned hinges on the second, much better. In my opinion, CMP arfs make good starting points. I just didnt trust any of their hardware or instructions. Before I forget, drill the wing mounting holes closer in by about 3/4" or you may drill through the wing fillet on the fuse. I did that on the first one following their instructions. Look here at the Nitro Models web site and scroll down a ways and you'll see they did it on their demo plane too. You can just see the patch on the wing fillet.
http://www.jcwhitney.com/autoparts/P...wflag=1#review
FYI - Just my opinion but I dont think a .91 4-stroke will fly the plane very well. Wouldnt be any fun. Mine balanced with no led using a saito 1.20 and was just enough power with only a little reserve. CMP planes build a little on the heavy side.
Edwin