RE: No string to pull servo wire through wing!
No problem Jimmy
Fumblefingers here does it all the time.
Just take a small dowel (1/16 is about perfect), and tape string to one end, them work the dowel through the wing root opening to the servo opening, grab the string, unhook it from the dowel and you're in business. Or you can tie a bolt to the string and work it through that way, but the dowel's easier.
Al