After doing repairs on servos and meeting guys who actually know things about stuff, I have found out a few good things myself :-)
Stop mounting your servos into 'wells'....
In other words stop trying to fix poor mounting geometry with long servo arms.
First if a servo doesn't have some gear lash it has current draw. Gears don't move for free.
Each hole of attachment away from the output shaft amplifies gear lash, clevis thread and pin 'slop' shown at the surfaces trailing edge.
As was stated in RCSD articleS the optimum mounting for servo is flush with the bottom surface if bottom horns are used and flush with the top surface if top horns are used. Never use more than the second hole of the servo arm to get travel....use your TX's travel adjust and servo arm geometry....as in a knotch toward the flap and a notch away from the aileron.
You'd be surprised at how strong and tight an HS55 is in the first hole....
And that's all I have to say about that....other than if you have a molded wing where the designer didn't think a think like opimizing servo geometry was as important as paint shine, you can still 'glue' your servos into the cavity by modifying the cavity.
In another article in RCSD (sorry cute color photos) it explains about gluing a piece of Spyder foam or colored foam into the cavity to fill it to near the top, then using a Dremel Router to routed down to the exact thickness of the servo's body. That gives your servo a stage to perform on...and a route-outable base (forever) for changing servo mounting when its sold for a plane that did have a mounting system :-)
Now oh goodie you can lay in some glop to stick your servo in and they'll be all set for using the smallest possible servo arm, allowing the servo to show its best possible performances !
If you don't know what that means, it means your surfaces will be tighter than your friends:-)
Gears will last ages, servo motor brushes will be fresh and shiney, the oh so touted holding power will be huge....servo companies will go out of business because their servos will last for ever. They won't need gimmiks to sell and they will be able to spend R&D on more creative mounting systems, clevis systems, wiring systems.... you know all things we would all really like to have! :-)
See there is a bunch of good reasons to mount your servos on purpose versus dumping them into a well with some glop!
...and that's all I have to say about that, if you want more detail, get away from the keyboard, dig out your back issues and READ.
Gordy
Off to Frankfort for some DS today :-)
