the best way I have found for pull pull is this:
this came from Don the designer of the Wasp.
he told me to go to the fishing store or K-Mart and get some 30lb test nylon coated fishing wire for 2 bucks. now you run it where you want and to close it you simply twist it after the loop and heat the twist with a lighter. the nylon melts to itls self and bonds like nothing I have ever seen I have tested it over and over off the plane be making a loop on each end of a piece then incerting a screwdriver in each end and pulling apart. the loops never give before the wire. now on a small plane 30lb test is much more than you are gioing to need. I have even crashed and after the crash the servo horns break off the servo before the wire breaks....
simple, fast, and cheep....
try it.