The best performing pushrod-to-horn connection for use on the Mugi Evo is a ball joint type connector. The elevon horns should be around 20mm in height. Beginners should use the topmost hole on the servo horn, though more confident or advanced pilots may enjoy the extra manouvrability offered by going down one hole.
Connect the elevon horn to your pushrod using whichever hardware you've chosen and then bring the elevon and horn together with the rear of the elevon raised about 10mm as shown in the diagram below.
Rotate the elevon horn slightly so that the horn and pushrod are aligned all the way to the servo arm. While maintaining the 10mm 'up elevon', mark the position of the elevon bolt holes on your elevons. Now attach the horn for real and secure it in place with the nuts and bolts provided - adding a smear of glue to the threads of the bolts to ensure long term security.
Why the 10mm 'up elevon'?
The Mugi Evo, being a delta aircraft requires a constant amount of up elevator in order to fly straight and level. This amount of built-in up elevator is often referred to as 'reflex'.
10mm is not guaranteed to give you straight and level flight from your first launch, however. There will be lots of factors that determine the flight of your aircraft, such as motor thrustline, exact wing section etc. You will usually need to 'trim' the model in the first few flights. This can be achieved using the trims on your transmitter during flight, then more permanently set using the adjustments offered by your pushrod connection hardware.