Altough Sullivan horns perform good installing them is not that easy in my opinion.

They would work for this application where the surface is flat but for ailerons they are very difficult to lineup with the back plate and I spend considerable amount of time with lining the screws with back plate. The same for plastic horns. So thats why I choose this. And the Heavy duty single horns I used for elevators and ailerons both were installed in matter of seconds drilling a single hole and thats it.

kris, I had also seen that web site but decided to go with the horn holes in line with the hinge line, as I read in couple of places it is the right way. I am no expert of pull-pull and hence this is my first pull pull installation, but having the same distance in both horns as well as servo arm was my goal to prevent any slop in the pull pull lines.

Red B., I have the wheel will experiment with it.

birdnest, I fly at
www.lvrcs.com

Thanks for your replies, I sent an email to Dubro asking where I can get those black couplers, Let's see.