There is a company in California, I will have to look it up when I get home, that sells vinyl coated kevlar cord. This is what many of the pattern folks use instead of the metal cables. They work great, do not stretch, are very strong, won't wear a groove in the clevis, and come in various sizes (diameters). I use this cord with these Dubro Clevis

http://www3.towerhobbies.com/cgi-bin...&I=LXWH32&P=SM

along with 2-56 eyebots

http://www3.towerhobbies.com/cgi-bin...?&I=LXFV31&P=7

Then I attach the vinyl coated kevlar to these eyelets using a simple loop knot. The length is adjustable using the eyebolt as it screws into the clevis.

On the servo end, I do the same thing with the clevis on the servo arm. This works out very well and gives you a good and secure connection without crimping. The crimping can possibly cause a weakness in the pull-pull cable if over-crimped.

CGr.