Here is the link http://www.hppilots.com/gpage30.html
Ask for Roy. They are very nice for setting up servos especially for multi servo surface set-ups. I had a little to do with redesigning them. There were some earily versions that had some problems and a few of my suggestions were incorperated in the new ones. They have an adhesive backing and can be reused. You can also cut them to fit around horizontal stabilizer (see post 152 photos). I just got the redesigned ones in the mail about a week or so ago. I'll be giving Roy some feed back so they can be tweeked if needed.