Coated KevCord
the place to get kevlar is from Don's Hobbies. He sells black coated KevCord. This stuff is indestructable...I use it on my 33% Extra. Use eyelets, triple-knot it, and use a piece of aluminum to crimp it, then put a pice of shrink wrap over it, and you'll have a setup that'll last forever. Bare Kevlar is not a good idea for controls on models, it is susceptible to UV light, moisture, and chafing, but the coated KevCord elimintaes all these troubles. I have broken many a cable using steel, and can tell you that it scares the livin' $#!^ oughta 'ya when you're doing a 4 point and learn you have no rudder on that side! LOL I used to replace steel cables twice a year if not more, but with the KevCord that Don sells I haven't had to replace one yet. Give that stuff a try...it really works great!
whew! edited that one for my non-spelling fingers! LOL