RE: Ultra Rc Evolution
The aileron lead has a habit of taking a trip inside of the wing so a J-TEC wire guide was used in each wing.
Also the balsa sheeting at the fornt of the wing at the root is vulnerable to being squeezed or over gripped by such actions as uninformed/bad lifting and possibly becoming cracked. It is a quick action to just smear thin CA inside the first panel.
Regards,
Eric.